25 jewels56h power reserve28,800 vph (4 Hz)
The Sellita SW381-1 is an automatic caliber with a bidirectional rotor, an analog display, 25 jewels, a power reserve of 56 hours and a frequency of 28,800 vph (4 Hz). Its complications are date, day, month and moon phase. Its features include hacking seconds and hand winding. It is in production.
Last updated 29 Apr 2026Suggest a correction
TECHNICAL SPECIFICATIONS
Movement Type
Automatic
Jewel Count
25 jewels
Power Reserve
56h
Frequency
28,800 vph (4 Hz)
Display Type
Analog
Rotor Type
Ball Bearing
Winding
Automatic (Bidirectional)
COMPLICATIONS
DateDayMonthMoon Phase
FEATURES
Hacking SecondsHand Winding
QUICK FACTS
FOR WATCH DEALERS
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