Important Watches, Collector's Wristw...

Hotel Richemond, Geneva, Oct 13, 2001

LOT 114

Minifon, Protona DBP, No. 1026937. Produced in the 1940's.Unusual stainless steel gentleman's wristwatch case with square button chronograph, register and tachometer, electrically linked to a portable recorder.

C. two-body, polished, pierced back.D. matte silver with painted gold indexes and Arabic numerals, auxiliary seconds and 30 minutes registers dials, outer tachometer graduation. "Feuille" gold hands.Diam. 39 mm.This wristwatch case has no movement and is disguised as a chronograph with a 30 minutes register. It bears a built-in microphone.