PATEK PHILIPPE REF. 3940 FIRST GENERATION
PERPETUAL CALENDAR YELLOW GOLD
Patek Philippe, Genève, "Perpetual Calendar",
No. 770169, case No. 2824943 Ref. 3940J. Made circa 1991.
Very fine and rare, self-winding, 18K yellow gold wristwatch with perpetual calendar, moon phases, 24 hour indication, leap
year indication and an 18K yellow gold Patek Philippe buckle.
Accompanied by a Patek Philippe leather folder and booklet.
Two-body, solid, polished and brushed, concave bezel, concave
lugs, snap-on case back, sapphire crystal.
Matte silvered with applied yellow gold faceted baton indexes,
outer engraved minute divisions, subsidiary dials for the days of
the month, of the week, the months, the 24 hours and leap year,
aperture for the moon phases. Yellow gold dauphine hands.
Cal. 240Q, stamped with the Seal of Geneva quality mark, rhodium
plated, fausses cotes decoration, 27 jewels, straight-line lever
escapement, Gyromax balance adjusted to heat, cold, isochronism
and 5 positions, shock absorber, free-sprung self-compensating flat
balance spring, 22K gold micro-rotor.