Watch:
Caliber 315 S QR
Mechanical self-winding movement
Perpetual calendar with retrograde date hand
Day, month, leap year in apertures
Moon phases
Center sweep second hand
Silvery opaline dial, hand-guilloched center, black Roman numerals
Fold-over clasp
Sapphire crystal case back protected by a hinged dust cover
Water resistant to 30 m
Case diameter: 38 mm
Yellow Gold
Caliber:
Perpetual calendar with retrograde date hand
Day, month, leap year in apertures
Moon phases
Center sweep second hand
Overall diameter: 28 mm
Height: 5.25 mm
30 jewels, 9 bridges
Balance: Gyromax
Vibrations per hour: 21'600
Power reserve: 48 h max
Number of parts: 361
21K gold central rotor