Important Collectors Wristwatches, Po...

Geneva, Nov 14, 2009

LOT 17

Military Aviator?s Large Single-Button Chronograph Leonidas, movement No. 6530. Made in the 1940's. Fine and very rare, large and unusual, stainless steel aviator?s wristwatch with single-button chronograph and instantaneous 30-minute register.

C. Four-body, massive, polished and brushed, castellated large rotating bi-directional bezel with luminous arrow pointer, lapidated lugs, large winding crown, snap back. D. Black gloss painted with luminous baton hour indexes and Arabic 12 and 6, outer white painted minutes and fifths of a second divisions, Arabic five-second numerals, subsidiary dials for the seconds and instantaneous 30-minute register. Luminous skeleton baton hands. M. 18???, frosted gilt, 21 jewels, straight-line lever escapement, monometallic balance, self-compensating Breguet balance spring, index regulator, visible steel chronograph work. Dial and movement signed. Diam. 50 mm. Thickness 16 mm.