LONGINES, movement No. 10827956, 18K yellow gold wristwatch with square button, Retour en Vol chronograph, register, tachometer [..]
CASE: Three-body, solid, polished, lapidated lugs, inverted bezel, snap-on case back.DIAL: Silver with applied yellow gold dart indexes and Arabic numerals, subsidiary guilloche dials for the seconds and the 30-minute register, outer seconds/minutes division, outermost blue tachometer scale. Yellow gold Alpha hands.MOVEMENT: Cal. 30CH, rhodium plated, 18 jewels, straight line lever escapement, monometallic balance, shock absorber, self compensating Breguet balance spring, index regulator. Dial, case and movement signed, in good conditionDIAM: 38 mm THICKNESS: 13 mm