ST1901
ST1901 tech specs
- Company: Tianjin Seagull
- Type: Mechanical chronograph
- Wind: Manual
- Frequency: 3 Hz (21,600 BPH)
- Jewels: 19[1][2]
- Features: Chronograph
The ST1901 is a chronograph movement made by Tianjin Seagull, based on the 175 by Venus.
It runs at a higher frequency — 3 Hz, compared to the 175's 2.5 Hz. It also has two more jewels.
Compared to a modern Tongji, winding it up feels comparatively effortless. Starting and stopping the stopwatch is a bit more significant, as is to be expected, considering it's engaging and disengaging a substantial mechanism.
It's the movement used in the 1963.[1]
References
- "Seagull ST19 Chronograph Movement (Review) + Brief History" Albert Kaminsky, Kaminsky Blog, Sep 2017
- "The Complete History of the Chronograph Movement: 1940s–1980s" Cheryl Chia, Revolution, Mar 2021
Further reading
Encyclopedias
- "ST19 Family" Grail Watch Reference
- "ST1901" Grail Watch Reference
