Hanhart Pioneer MK I Single Button Chronograph

Single button chronograph - 40 mm
• Case diameter (mm): 40.0
• Case thickness (mm): 15.0
• Case lug width (mm): 20
• Case back: Solid
• Case finish: Matte
• Case metal: Stainless steel
• Front crystal: Sapphire
• Movement: Automatic mechanical
• Manufacturer's limited warranty: 2 years
• Warranty service: RGM or Hanhart
° Earn 4540 WatchPoint Rewards on this purchase
WatchBuys Direct Price: $2,270.00
Availability:  Sold Out - Click Notify Me to Receive Notification of New Stock


Hanhart Pioneer MK I Single Button Chronograph
Hanhart Pioneer MK I Single Button Chronograph
Product Details

Hanhart introduced their first single button chronograph in 1938 which was then known as Calibre 40.

A single button chronograph provides ease of use in that one pusher is used to start, stop and reset the chronograph.

Even today Hanhart continues to produce in-house the movement modifications necessary to incorporate the single button function by using an erosion machine to modify the cam.




With so many watch brands producing chronograph watches, it's refreshing to see Hanhart taking the lead with the single button complication in much of their collection.

Besides ease of use, this design attracts a great deal of interest as a conversation point since the functions differ from a standard chronograph.

The distinctive red pusher is a Hanhart trademark and dates back to early Hanhart pilot's watch designs.

This bi-compax chronograph features a 30 minute register at 3 and small seconds at 9.  The case is in stainless steel and is fitted with a fluted bi-directional rotating bezel with red indicator. 


Other features include:

  • Convex sapphire crystal with interior AR coating
  • Screw down case back
  • Large crown with deep beveled edge
  • Off-white dial with SuperLuminova on numerals and hands
  • Power reserve of 42 hours

This watch is water resistant to 100 meters and is fitted with a vintage brown riveted calf skin strap with tang buckle.


WatchBuys is proud to have been selected as the exclusive North American distributor for Hanhart watches.

When you purchase your new Hanhart watch from WatchBuys, you'll not only receive a brand new, factory fresh watch, but also these additional services:


  • All Hanhart watches ship from the US to all locations in the US and Canada
  • Two year limited manufacturer's warranty
  • Watches may be serviced in the US by RGM
  • Our Hanhart watches have not been displayed in a retail store or tried on by others
  • We're here to answer questions or provide assistance before and after your purchase
  • We visit Hanhart in Germany on a regular basis to stay fully updated on all new models and production features
  • WatchBuys offers a comprehensive return policy on all Hanhart watches


We invite you to review the entire collection of Hanhart watches, an important part of German watch history since 1882.


Watch Reviews

Great addition to my collection

"Great addition to my collection"

Bruce F

Comments about this watch: I love this historic recreation of the 1938 original. A great addition to my collection (and maybe a daily wearer)!

Terrific experience with Watch Buys was the icing on the cake.

Other Considerations
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