27 jewels65h power reserve28,800 vph (4 Hz)
The 30-255 PS is a hand-wound movement manufactured by Patek Philippe. It achieves a 65-hour power reserve through two mainspring barrels arranged in parallel, a design that contributes to its compact construction of 164 parts. This is a base caliber in Patek Philippe's lineup, used in simpler timepiece references.
Last updated 7 Oct 2026Suggest a correction
TECHNICAL SPECIFICATIONS
Movement Type
Manual Winding
Jewel Count
27 jewels
Power Reserve
65h
Frequency
28,800 vph (4 Hz)
Diameter
31mm
Height
2.55mm
Display Type
Analog
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