Sinn CH124 Sea King Limited Edition

SKU: SI-463

Watch Brand: Sinn

Learn more about Sinn watches

Limited Edition 55 Pieces

Canadian military watch honoring the CH124 Sea King

Reservations Now Being Accepted
• Case diameter (mm): 38.5
• Case thickness (mm): 10.0
• Case lug width (mm): 20
• Weight - head only (grams): 65
• Case back: Transparent
• Case finish: Satinized
• Case metal: Stainless steel
• Dial color: CH124 Sea King Grey
• Front crystal: Sapphire
• Movement: Automatic mechanical
• Manufacturer's limited warranty: 2 years
• Warranty service: RGM or Sinn
° Earn 2560 WatchPoint Rewards on this purchase
WatchBuys Direct Price: USD $1,280

Reserve This Watch Now
Sinn CH124 Sea King Limited Edition
Sinn CH124 Sea King Limited Edition
Sinn CH124 Sea King Limited Edition
Sinn CH124 Sea King Limited Edition
Sinn CH124 Sea King Limited Edition
Sinn CH124 Sea King Limited Edition
Sinn CH124 Sea King Limited Edition
Sinn CH124 Sea King Limited Edition
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Product Details

Limited Edition of 55 Pieces

This is a very special limited edition Sinn watch designed to commemorate the 2018 retirement of the Canadian CH124 Sea King designed for shipboard use by the Royal Canadian Navy and the Royal Canadian Air Force.

This watch is limited to 55 pieces to mark the 55 years of service provided by the CH124 Sea King (the longest serving Canadian combat aircraft), and we are offering the chance to reserve this watch now and to choose your preferred serial number.


The CH124 Sea King has been one of the workhorses of the Royal Canadian Navy (RCN) and Royal Canadian Air Force (RCAF) for 55 years. 

Originally procured by the RCN as a means of countering the nuclear-powered attack submarines of the late 1950's, these helicopters have proven themselves time and again in various roles for the RCN and RCAF.

Based on the US Navy's SH-3, the CH124 Sea King began its service in 1963 and in addition to providing anti-submarine support and attack capabilities, this helicopter provided maritime surveillance, transport, search and rescue, and helicopter delivery services.

A critical player in many operations in Canada and worldwide, the CH124 Sea King operates to this day and is scheduled to be retired in December, 2018. 

This is a great looking watch with a very important link to a special Canadian military aircraft (CH124), and variations of this aircraft have been used by the US Navy (including Marine One) as well as military divisions in Brazil, Italy, Japan, UK, Spain, Denmark, Malaysia, Australia and a number of other countries.  

The Inspiration for This Watch

The idea and inspiration for this watch came from Captain Jason Miller of the Royal Canadian Air Force (RCAF).

WatchBuys worked closely with Captain Miller from the very beginning of this project to design a watch that would pay tribute to the CH124 Sea King.

The following are Captain Miller’s comments which provide interesting background information:

"I am an Air Combat Systems Officer (ACSO) currently serving as an ACSO instructor at 402 "City of Winnipeg” Squadron in Winnipeg, Manitoba. Like so many before me, I had the honour of serving on the CH124 Sea King as a Tactical Coordinator (TACCO) during my time at 423 Maritime Helicopter Squadron.

I was posted to 423 (MH) Squadron after receiving my ACSO wings in April 2013 and completed my training on the Sea King in March 2014. As a sea-going unit, 423 (MH) Squadron’s mandate is to help provide "Wings for the fleet” and send the CH124 Sea King to sea on Canadian warships for the Royal Canadian Navy (RCN).

During my time on the Sea King, I participated in numerous international exercises and two international deployments with NATO in the Atlantic Ocean, Labrador Sea, Tyrrhenian Sea, North Sea, and Mediterranean Sea.

Over the course of my posting at 423, I fell in love with the robust and utilitarian nature of the Sea King. A true workhorse, it is an aircraft that has been pushed into nearly every imaginable situation and environment over its 55-year tenure.

When searching for a company and watch to commemorate this legendary aircraft, Sinn was immediately on the shortlist. Like the Sea King, Sinn’s watches are robust and utilitarian; an excellent match for one of Canada’s greatest aircraft."

A True Workhorse - Learn More

For those interested in learning more about the Canadian CH124 Sea King, we recommend the following resources:
  • This second link is to a publication documenting the unbelievable story of Able Seaman Barker and the Barker Bar.
Once you read these publications the importance and impact of the CH124 Sea King become evident, and this military aircraft has rightfully earned its place in Canadian military history.

Features of This Watch

The Sinn CH124 Sea King limited edition watch is based on a Sinn 556 A pilot's watch.

The features of this limited edition watch which differentiate it from a standard Sinn 556 A include:
  • Limited run of only 55 pieces, one for each year of service in the RCN and RCAF
  • Nose-on depiction of the CH124 Sea King above the 6
  • Grey-on-grey dial utilizing the same color tones currently used on the CH124
  • "Barker Bar" designed seconds hand - a piece of safety equipment named after the crew member who fell out of the CH124 Sea King in flight and managed to survive
  • Custom rotor featuring the aircraft designation, years of service, and serial number all printed in the same font as used on the aircraft
  • Numerals, indices and hands use BGW9 SuperLuminova

Technical features of the Sinn CH124 Sea King watch include:
  • Case in 316L surgical stainless steel with satinized finish
  • Sapphire crystals on both sides of the watch
  • Double coated anti-reflective covering
  • Dual seal crown lock to improve water resistance to 200 meters
  • Top Grade movement
  • Low pressure resistant at high altitudes
  • Screw down crown
  • Date indicator between the 4 and 5 hour markers

We know that many owners prefer certain serial numbers, so with this series you may actually choose an exact number.

But remember they are available on a first come, first served basis and our web site will update in real time once a specific serial number is sold out.

Bracelet Option

All watches will arrive from Sinn fitted with a vintage style Sinn brown calf leather strap with black stitching as shown in the picture at the top right of this page as part of this limited edition watch.

Once your specific serial number arrives and we contact you for final payment, you will have the option of adding a bracelet to your purchase (at an additional charge of USD $320).  Just let us know at that time if you wish to add the bracelet, and we will include free tools to remove the necessary links to fit your wrist.

How Can I Purchase This Watch?

This is a brand new watch from Sinn and is limited to 55 pieces, which commemorates the 55 years of service for the Canadian CH124 Sea King.

Because this watch is a limited edition and you are allowed to choose a specific serial number, we are selling this watch using a reservations system.

If you would like to reserve a piece, please click here to learn more about the reservations process and how to select your preferred serial number.

When you purchase your new Sinn watch from WatchBuys, you'll not only get a finely engineered timepiece with excellent value for money, you'll also benefit from the WatchBuys Sinn Advantage.

WatchBuys Advantage #1

Because we are the official and authorized North American Sinn distributor, your name and watch serial number will be automatically registered in our database for a Sinn manufacturer's limited warranty which we pass through.

This means that should your watch require service during the Sinn manufacturer's limited warranty period, service will be provided by Sinn in Germany when you return your watch to them. This Sinn manufacturer's limited warranty is transferable to subsequent owners as allowed by Sinn.

You are responsible for paying the shipping charges to Sinn, and all repairs that Sinn approves under its warranty are at no charge. Sinn will also pay the return shipping charges to the address you specify.

The Sinn manufacturer's limited warranty period is as follows:
  • Watches in the EZM Series: 3 years
  • Watches marked AR containing inert gas: 3 years
  • Watches in the DIAPAL Series: 5 years
  • All other Sinn models: 2 years

WatchBuys Advantage #2

As an added benefit to those who purchase Sinn watches from WatchBuys, you may choose to have your warranty repairs serviced through our US service center, RGM Watch Service located in Mount Joy, Pennsylvania. This added service saves our clients the time and effort of returning their watches to Germany for repair. This benefit is transferable to subsequent owners who purchase directly from the original registered owner.

Please note that you are responsible for paying shipping and insurance charges for sending your watch to RGM. Once they reach your watch in the service queue they will determine which repairs are covered under Sinn's warranty.

It is important to note that oil-filled quartz Sinn watches must be repaired in Germany (EZM 2, Hydro and UX series). If your watch meets one of these conditions and requires service under warranty, please contact us and we'll provide instructions for shipping the watch to Sinn in Germany.

WatchBuys Advantage #3

Your watch will be repaired at no cost to you other than shipping charges to either Sinn or RGM during the warranty period. Sinn watches purchased through the "grey market" (non-authorized sources) may carry no warranty from Sinn. Sinn watches purchased through authorized overseas retailers are governed by the warranty policies of those dealers and/or Sinn, and typically must be sent to either the overseas dealer or Germany for repair.

WatchBuys Advantage #4

You'll be wearing your new Sinn watch soon after your order is placed since we stock Sinn watches and ship free using FedEx Air. Plus, since we are located in the United States, there are no "hidden charges" for shipments to US residents as is the case with most overseas dealers. Such charges can add up to 15% to the cost of your new watch, and include credit card surcharges, foreign exchange credit card bank fees, import duties and taxes, and custom's broker charges.

WatchBuys Advantage #5

WatchBuys offers a comprehensive return policy with no restocking fees to US residents. Overseas dealers, including those involved in the grey market, typically don't offer a return policy, and if they do, returning a watch under the policy is both complicated and expensive due to import/export and custom's requirements. Restocking fees are also common and may range up to 15%.

Learn more about our return policies.

WatchBuys Advantage #6

WatchBuys is pleased to accept payments through PayPal, debit and credit cards. We charge no surcharges to use credit or debit cards, and because we are based in the United States your US card is charged in US dollars with no conversion or exchange rate fees.

We also accept payments from PayPal and charge no surcharges.

Please note that to pay by credit card, debit card or PayPal your account and/or card must be issued by US or Canadian financial institution and billed to a confirmed US or Canadian address.

WatchBuys Advantage #7

When you purchase your new Sinn watch from WatchBuys, you'll earn WatchPoint Rewards which accumulate and may be redeemed against future purchases.

Sinn watches feature a number of cutting edge technologies, many of which are unique to Sinn. Please note that not all Sinn watches, including the watch on this page, use all of these Sinn technologies.

Among the more notable Sinn technologies are:

Tegimented Hardened Cases

Many Sinn watches are fitted with Tegimented cases produced in-house by Sinn's case making affiliated company in Glashutte, Germany.

Standard steel used by most watch companies has a hardness of between 200 and 240 HV (Hardness Vickers is a common scale used to measure material hardness). The Tegiment process produces a hardness of at least 1,200 Vickers which is five times harder than standard steel (and on some Sinn models up to nine times harder than standard steel).

The Tegiment process is not a coating consisting of a foreign material; instead the steel itself that has been hardened using a special engineering process that creates a hardened barrier. The base material is a type of stainless steel also used for surgical implants, and the stainless steel resistance to corrosion is further improved by the Tegiment hardening process.

The primary advantages to a Tegimented case are extreme resistance to scratches and other case abrasions, as well as increased resistance to corrosion.

Please note that certain Sinn watches are fully Tegimented (case, bezel) while others are Tegimented only on the bezel. Use the links below to view both categories.

  • View Sinn watches with fully Tegimented cases.

  • View Sinn watches with Tegimented bezels only.

Dehumidification Technology

A number of Sinn models feature cases filled with inert gas. Sinn has found that filling the case with inert gas can help prevent the introduction of moisture and humidity to the case, as well as provide a more stable environment for the oils that lubricate the movement.

The proper care of any mechanical watch movement mandates that these oils maintain both their viscosity and lubrication properties.

  • View Sinn watches with dehumidification technology.

Copper Sulphate Capsules

A number Sinn models use one or more copper sulphate capsules to absorb humidity trapped inside the case. Over time these capsules will gradually turn dark blue indicating that humidity has been absorbed.

The primary benefit to these copper sulphate capsules is a more dry and stable environment for both the movement and the lubricating oils. Together with Sinn's inert gas treatment these capsules form the basis of Sinn's Dry Hold Technology.

This technology not only provides a more stable environment for the movement, but also prevents fogging of the crystal when going from hot to cold environments or from humid to non-humid conditions (such air conditioned buildings).

  • View Sinn watches with copper sulphate capsules.

Extreme Antimagnetic Protection

Magnetism can cause dramatic swings in the timekeeping of a mechanical watch movement. People are often exposed to magnetic fields without even being aware - frequent high altitude flying, metal detectors, audio and video equipment, medical equipment and computer equipment can all cause problems with magnetism.

Many Sinn watches offer extreme protection against magnetism up to 80,000 A/m. Sinn achieves these results using a number of different technologies, including special case and case back construction, soft iron components in the case and protective rings surrounding the movement.

  • View Sinn watches with extreme antimagnetic protection.

DIAPAL Oil Free Escapement

Sinn caused quite a stir when they first released their DIAPAL technology. Beginning in 1995, Sinn began work to create an oil free escapement. With any mechanical watch movement, the aging of oil, especially in the escapement can create long term problems for that movement. Additionally, as movement oil ages, required service intervals become more frequent.

Sinn's early analysis to this problem provided a quick solution (at least in theory) - if you don't use oil, it can't age. The process began by exchanging the ruby escapements for diamonds (the word "DIAPAL" derives from the German name for diamond escapements) in order to achieve the desired effect. The designation stuck, even though today Sinn works with solutions taken from advanced nanotechnology rather than diamonds.

The result is a movement that proves so reliable that Sinn offers an unprecedented five year warranty on their DIAPAL watches.

  • View Sinn watches featuring the DIAPAL oil free escapement.

Hydro Oil Filled Technology

Sinn has developed a technology termed "Hydro" in which the entire watch case is filled with oil. Watches using this technology are based on quartz rather than mechanical movements.

By using this type of movement, Sinn is able to fill the watch with oil, which has the joint affect of greatly enhancing the readability of the dial and time from any angle (including under water), and increasing the water resistance of the watch even at great depths.

  • View Sinn watches with Hydro Oil Filled technology.

Submarine Steel

Sinn has created a line of watches featuring cases made from German submarine steel (the U Series). The steel was procured by Sinn from a steel supplier to Emden GmbH, one of Germany's North Sea shipbuilding yards who construct submarines from the very same steel.

Because of the special steel used from the submarine steelmanufacturer, the case resists the effects of exposure to salt waterand salt water environments.

These cases are produced in-house by Sinn's case making affiliated company in Glashutte, Germany.

This special steel is also amagnetic which means that is does not have magnetic properties and cannot itself become magnetized. The watch movement itself is protected from magnetic fields up to 4,800 A/m.

  • View Sinn watches built from German submarine steel.

EZM Mission Timers

Sinn is a partner for manufacturing watches for the German Special Forces, including SWAT, Customs, FBI, helicopter police, GSG9 and other units.

Beginning with the now highly collectible (and valuable) Sinn EZM 1, Sinn has grown this collection to some of the most durable and highly functional watches made and they remain among the most popular in the collection.

  • View Sinn watches in the EZM Series.

TESTAF Certified Pilot's Watches

Lothar Schmidt, Sinn's CEO and owner had long been disturbed by a lack of technical standards for defining a "pilot's watch". As an engineer, Mr. Schmidt was fluent in standards for diver's watches, anti-magnetic watches and the many other technological standards used to manufacture watches.

A widely used reference for standards is DIN, or the Deutsches Institut fr Normung (German Institute for Standardization). Oddly, he discovered there were no DIN standards to cover pilot's watches where such standards existed for example for diver's watches.

The new "Technical Standard for Pilot's Watches" (TESTAF) was developed by the Aachen University of Applied Sciences and establishes the suitability for professional use as a pilot's watch.

  • View Sinn watches in the TESTAF Series