PATEK PHILIPPE REF. 3970 YELLOW GOLD
PERPETUAL CALENDAR CHRONOGRAPH
Patek Philippe, Genève, Ref. 3970E.
Made circa 1992.
Very fine and rare, astronomic, water resistant,
18K yellow gold wristwatch with round button
chronograph, register, perpetual calendar and
moon phase with a Patek Philippe gold
deployant buckle.
Three-body, solid, polished, screwed-down
transparent case back, concave bezel, curved
and fluted lugs, sapphire crystals.
Matte silver with applied yellow gold bâton
and pyramid indexes, subsidiary guilloché dials
for the seconds and the 24 hours, the 30-minute
register and the leap year, graduation for the
days of the month, outer 1/5th seconds scale,
aperture for the days of the week, the months
and the moon phases. Yellow gold baton hands.
Cal. 27- 70 Q, stamped with the Seal of
Geneva quality mark, rhodium-plated, fausses
côtes decoration, 24 jewels, straight-line lever
escapement, Gyromax balance adjusted to heat,
cold, isochronism and 8 positions, shock absorber,
self-compensating free-sprung Breguet
balance spring.