IWC REF. 3750 DA VINCI
PERPETUAL CALENDAR CHRONOGRAPH
International Watch Co., Schaffhausen, "Da Vinci," case No.
2503458, Ref. 3750. Made circa 1997.
Very fine, self-winding, water-resistant, 18K yellow gold
wristwatch with round button chronograph, registers, secular
perpetual calendar, moon phases and an 18K yellow gold IWC
Two-body, solid, polished and brushed, rounded stepped
bezel, screwed-down winding crown, snap-on case back, hooded
mobile lugs, hesalite crystal.
White with applied yellow gold faceted baton indexes and
luminous dots, outer 1/5th seconds track, subsidiary dials for the
seconds, the 12-hour and 30-minute registers, days of the month,
of the week, apertures for the moon phases and for the year display
with 4 digits until 2499. Luminous gold baton hands.
Cal. 79061, gilt brass, 36 jewels, straight-line lever escapement,
monometallic balance, adjusted five positions, shock
absorber, self compensating flat balance spring, micrometer
regulator, hack mechanism.