Hanhart Pioneer MonoScope Single Button Chronograph

Single button chronograph - 45 mm
• Case diameter (mm): 45.0
• Case thickness (mm): 16.0
• Case lug width (mm): 23
• 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
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WatchBuys Direct Price: $3,130.00
Availability: In Stock - Ships Immediately

Hanhart Pioneer MonoScope Single Button Chronograph
Hanhart Pioneer MonoScope Single Button Chronograph
Product Details

This watch is Hanhart's largest Pioneer single button chronograph with a case size of 45 mm.  It is also the newest addition to the Pioneer Collection.

As in their other larger watches, Hanhart has taken the time to modify the movement to correctly space the chronograph registers to the case size.

These modifications, as well as those to create the single button chronograph function are developed and produced under the supervision of Hanhart's watchmakers by La Joux-Perret.



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 contour of 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
  • Skeletonized Hanhart rotor

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.


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