26 jewels41h power reserve28,800 vph (4 Hz)
The STP1-21 is an automatic movement manufactured by Swiss Technology Production, based on the ETA 2824-2. It measures 25.6mm in diameter, beats at 28,800 vph, and delivers a 41-hour power reserve with 26 jewels. The movement includes hacking seconds, hand winding, and a date complication, featuring Incabloc shock protection. Production has been discontinued following the closure of STP in January 2025.
Last updated 15 Sep 2026Suggest a correction
TECHNICAL SPECIFICATIONS
Movement Type
Automatic
Jewel Count
26 jewels
Power Reserve
41h
Frequency
28,800 vph (4 Hz)
Diameter
25.6mm
Display Type
Analog
Shock Protection
Incabloc
COMPLICATIONS
Date
FEATURES
Hacking SecondsHand Winding
QUICK FACTS
TYPE
AutomaticSTATUS
DiscontinuedMANUFACTURE
In-houseLAUNCH YEAR
2022COUNTRY
SwitzerlandFOR WATCH DEALERS
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