IWC REF. 3540 INGENIEUR PERPETUAL
CALENDAR MOON PHASES YELLOW GOLD
International Watch Co., Schaffhausen,
"Ingenieur Perpetual," No. 2388075, Ref. 3540.
Made in the 1990s.
Very fine, tonneau-shaped, center seconds,
self-winding, water- resistant, 18K yellow gold
wristwatch with perpetual calendar, moon
phases and an 18K yellow gold IWC buckle.
Dial, case and movement signed.
Three-body, solid, polished and brushed, screw-down case back, hinged lugs, sapphire crystal.
Ivory color with applied yellow gold baton indexes and luminous dots, outer minute/seconds track, subsidiary dials for the days of the month, the week, the months, aperture for the moon phases and the year. Luminous yellow gold baton hands.
Cal. C37582, gilt brass, oeil-de-perdrix decoration, 36 jewels, straight-line lever escapement, monometallic balance adjusted to 5 positions, shock absorber, self-compensating flat balance spring, 21K rotor segment.