Technical dataPatek Philippe Ref. 5940Men's wristwatch with perpetual calendar in 18K yellow gold
MovementCaliber 240 Q
Ultra-thin self-winding mechanical movement. Perpetual calendar with analog displays for the date, day of the week, month, and leap-year cycle. Moon phases.
Diameter 27.50 mm
Height: 3.88 mm
Number of parts: 275
Number of jewels: 27
Power reserve: 48 hours
Winding rotor: Recessed 22K gold minirotor, unidirectional winding
Balance: Gyromax®
Frequency: 21,600 semi-oscillations per hour (3 Hz)
Balance spring Spiromax®
Functions:Two-position crown
– Pushed in: to wind the watch
– Pulled out: to set the time
Displays:Center hour and minute hands
Subsidiary dials:
Day of week and 24-hour dial at 9 o'clock
Month and leap-year cycle at 3 o'clock
Date and moon phases at 6 o'clock
Correctors:At 9 o'clock: day of week correction
Between 11 and 12 o'clock: date correction
Between 12 and 1 o'clock: month correction
At 6 o'clock: moon-phase correction
Setting stylus in ebony and 18K yellow gold delivered with the watch.
Hallmark:Patek Philippe Seal
Features Case:Cushion-shaped case in 18K yellow gold, cambered sapphire glass.
Sapphire-crystal snap back and interchangeable solid snap back in 18K yellow gold.
Water-resistant to 30 meters
Case dimensions:Length x width 44.60 x 37.00 mm
Height: 9.25 mm (overall)
Height: 8.5 mm (back to glass)
Width between lugs: 21 mm
Dial:Cream-colored, grained
Nine applied Breguet numerals in 18K yellow gold.
Leaf-shaped hour and minute hands in 18K yellow gold.
Day of week, month, and date hands in 18K yellow gold.
24-hour and leap-year-cycle hands in blued steel.
Strap:Alligator leather with square scales, hand-stitched, matt black, prong buckle in 18K yellow gold.