Important Modern & Vintage Timepieces

Geneva, Mar 16, 2014

LOT 246

LONGINES SINGLE BUTTON, CENTRAL MINUTE COUNTER CHRONOGRAPH Longines, No. 7417978, Ref. No. 5681 2. Made circa 1950. Fine and very rare, stainless steel wristwatch with single-button flyback chronograph, central progressive minute register hand.

Two-body, polished and brushed, numbered snap-on case back, concave lugs with underside numbered 10. Brushed, silvered, with luminous Arabic numerals, outer minute track, outermost fifths of a second scale, subsidiary seconds dial for constant seconds. Luminous baton hands, central minute register hand. Cal. 12.68Z, 15''', rhodium-plated, fausses cotes decoration, 17 jewels, straight-line lever escapement, monometallic balance, shock absorber, self-compensating Breguet balance spring, index regulator.