pioneer
PIONEER Mk I
The PIONEER Mk I is the replica of the “Calibre 40”, the first precision chronograph produced by Hanhart in 1938. All of the chronograph functions on this unconventional model – start, stop and zero setting – are performed by a single button and always strictly follow each other. Unlike its two-button equivalent, the seconds hand on this chronograph cannot be restarted from the point at which it is stopped; the next press of the button invariably returns the spring to the original starting point. This meant that the automatic calibre used for the Mk I also had to be redesigned slightly.
MOVEMENT
- Automatic chronograph movement HAN3601
- Basis: ETA7753
- Mono-pusher conversion
- 28,800 vibrations per hour, 4 Hz, 27 jewels
- Power reserve of min. 42 hours
FUNCTIONS
- Small second
- 30-minute counter
CASE
- Stainless steel
- Diameter 40 mm, height 15 mm
- Large crown and red button
- Fluted rotating bezel
- Anti-reflective convex sapphire glass
- Screwed-down case back
- Water-resistant to 10 bar/10 ATM
DIAL
- Off-white or black
- Super-LumiNova® coated numerals and hands
STRAP
- Calfskin or stainless steel
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