incasementyellow gold 18 ct., three-piece case, in square carved shape, curved sapphire glass, screwed-in caseback
lockerbuckle in yellow gold
faceivory, counters decorated with circular beads, brass arabic numerals, brass hands
clockworkmechanical with self-winding, caliber DJR 50 (base caliber Valjoux 7750 modified with caliber Jaquet 109), 44-hour power reserve, 31 jewels, 28,800 vph.
functionshours, minutes, small second, split-second chronograph
diameter40.5 x 38 mm
specialitywater-protected till 5 atm