Hanhart Pioneer MonoControl Single Button Chronograph

Single button chronograph with date - 42 mm
• Case diameter (mm): 42.0
• Case thickness (mm): 15.0
• Case lug width (mm): 21
• 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 5260 WatchPoint Rewards on this purchase
WatchBuys Direct Price: $2,630.00
Availability: In Stock - Ships Immediately

Hanhart Pioneer MonoControl Single Button Chronograph
Hanhart Pioneer MonoControl Single Button Chronograph
Product Details

This is one of our favorite Hanhart watches, and features a single button chronograph complication in a larger 42 mm case size.

What we like about Hanhart is that they did not take the typical "shortcuts" when creating this larger watch.

Many brands simply plug an existing movement into a large case creating a pinched effect (the registers do not extend to the case edge and the dial is not proportional to the case size).

This effect in many watches is almost comical.

Hanhart has incorporated movement modifications from La Joux-Perret to change the layout of the chronograph registers and functions to correctly fit the case size.




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 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.

Another Hanhart movement modification is the increased spacing between the pusher and the crown to improve ease of use.

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
  • Silver accented dial with SuperLuminova on numerals and hands
  • Power reserve of 42 hours
  • Date indicator at 6

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

Overall A Beautiful and Well Crafted Watch

"Overall A Beautiful and Well Crafted Watch"

Robert G

Comments about this watch: I agree that Hanhart should receive much more recognition for making excellent timepieces. The Pioneer MonoControl Single Button Chronograph with silver dial is wonderful in all respects with two minor qualms.

First, it is difficult to set the minute hand so that it corresponds with the second hand, i.e. there is some "play", and the needle of the minute hand is so tiny that you have to really squint. You have to experiment a bit to get it right. A slight nuisance, but others may not care about this as much as I do.

Second, I recall that the Worn and Wound review by Zach Weiss saying that the dial is quite legible. I would disagree. Legibility is alright but not great. But the silver dial format is unusual, and I would buy this watch again.