Perpetual Calendar Manufacture

In stock
Product Details
Time is eternal: the precision of this model’s calendar displays lasts until the year 2100.


Reference CH-1721R
Case material 18-karat red gold
Case back Screw-down case back with satin finish and sapphire crystal
Diameter in mm 40mm
Height in mm 13
Finish Partly polished, partly with satin finish
Bezel Polished screw-down bezel with side knurling and full thread


Caliber Manufacture caliber C. 127, automatic
Frequency 3 Hz (21.600 A/h)
Power reserve in hours Approx. 40h
Number of jewels 30


Dial material Solid sterling silver (925), lacquered
Display/s Central hours, minutes and seconds, analog date, weekday, 48 months, leap year, moon phase, age of moon
Design of hands Thermally blued, hand-finished steel hands
Shape of hands Poire Stuart

Strap & buckle

Strap material Louisiana crocodile leather
Type of buckle Pin buckle or folding clasp


Water resistance in atm 3 bar (30m)
Special Screw-mounted correctors; delivered with watch winder
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