18 jewels43h power reserve21,600 vph (3 Hz)
Caliber 177-SQU is an ultra-thin mechanical manually wound skeleton movement by Patek Philippe. It measures 20.8 mm in diameter and 1.77 mm in height, operates at 21,600 vph, contains 18 jewels, and delivers a minimum 43-hour power reserve. The movement features Gyromax® balance and carries the Patek Philippe Seal hallmark.
Last updated 29 Apr 2026Suggest a correction
TECHNICAL SPECIFICATIONS
Movement Type
Manual Winding
Jewel Count
18 jewels
Power Reserve
43h
Frequency
21,600 vph (3 Hz)
Diameter
20.8mm
Height
1.77mm
Display Type
Analog
FEATURES
Hand Winding
QUICK FACTS
FOR WATCH DEALERS
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