Black Dial Telemeter Chronograph Watch 1940s bis-hidden in effect telling the time

in effect telling the time in a linear fashion

This is a rare and unusual clock by ST Dupont

- Tudor Big Block Chronograph - 40mm steel case- Ref 94200 with black tachymeter bezel- Exotic ‘Monte Carlo’ dial- Black tachymeter bezel- Box

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Black Dial Telemeter Chronograph Watch 1940s bis-hidden in effect telling the timeThe Mono Pusher Small Seconds Chrono This is a beautiful early chronograph featuring a mono pusher and small seconds telemeter scale dial. The telemeter scale was used to accurately assess the distance away of an event by timing the journey of its sound and was predominantly used by the military. One could start the chronograph timer upon seeing the flash of artillery and then stop it when the sound of the explosion was heard. The reading on the