Stp Caliber Stp111

SwissTP Caliber STP1-11

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Stp Caliber Stp111

Manufacturer Swiss Technology Production
Caliber Number STP1-11
Base Caliber ETA 2824-2 / Sellita SW200-1
Movement Type Automatic
Casing Diameter
4.6mm thick
Jewels 26
Vibrations Per Hour
28,800 BPH
Power Reserve
44 hours
Lift Angle
52 degrees
Stem Length
15.7mm (17.7mm for extra long)
Shock System Incabloc
Barrel Spring
Nivaflex NM
Winding Direction Clockwise
Functions Hours, minutes, central seconds, date at 3:00 (6:00 also possible)
Country of Manufacture Switzerland
Known Models
BOLDR Odyssey (Add yours to the comments below…)

STP caliber STP1-11 is a Swiss made automatic watch movement with 26 jewels. STP stands for Swiss Technology Production, however, you will mostly see this manufacturer simply referred to as STP. Their website also references the name SwissTP. Whatever you call it, STP is a Swiss factory owned by Fossil Group with a production rate of about 100,000 movements per year.

Swiss Technology Production Caliber Stp1 11

STP1-11 VS STP1-11M

There is also a similar caliber STP1-11M which is the non automatic version of the STP1-11. The manual wind version is slightly shorter at 3.7mm but has the same case fitting diameter of 25.6mm. The beat rate is the same, as well as the power reserve, but the jewel count drops from 26 to 20 without the need of an automatic wind unit.


The STP tech sheets claim an accuracy rating of -0/+15 seconds per day, operating within a max amplitude of 320 degrees and minimum amplitude of 200 degrees. Each movement is tested in 5 positions.

Additional Images:

Stp Caliber Stp1 11 Balance Wheel

Video of the STP1-11 in Action:

Manufacturer’s Video:

Additional Resources:

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