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STP 1-11

High confidence

Seeded principally as a dating tool. STP was established by Fossil in the 2010s, so its calibers cannot appear in any watch predating that — which makes an STP movement conclusive evidence of modern production on a brand whose reissues deliberately resemble their 1950s ancestors. That is the most useful thing this caliber does for the catalog.

Specifications

Movement manufacturer
STP
Base caliber
ETA 2824-2
Frequency
28,800 vph (4 Hz)
Jewels
26
Power reserve
44 hours
Winding
automatic
Complications
Centre seconds · Date

Architecture

A 2824-family automatic produced by STP, the Fossil Group's Swiss movement operation. Centre seconds, date, 28,800 vph.

Related calibers

References using this caliber

Provenance of this record

Sources & Evidence

Primary sourceManufacturer documentation

Zodiac — collection specifications and heritage material

Zodiac (Fossil Group)

Accessed
2026-08-19

Cited for

This referenceHigh confidence
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