Sea-Gull / Seagull ST2504 / TY2504
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13 1/2”’ (30.4 mm) | Height 7.4 mm | Automatic | Swiss Lever | Small Seconds | Retrograde Date/Day |
Remarks:
- Automatic (unidirectional winding), small seconds at 9 o’clock (hacking), retrograde date at 9:30 o’clock (quick adjustment via pusher at 8 o’clock), retrograde weekday at 2:30 o’clock (quick adjustment via pusher at 4 o’clock)
- The ST2551 is a member of a very large ST25/TY25 movement family
- Movement with perlage
- Ball bearing rotor
- Listing ID: 159
- Manufacturer / Brand: Sea-Gull
- Caliber: ST2504 / TY2504
- Size in French Lignes: 13 1/2'''
- Size range mm largest diameter: 22 - 31 mm
- Shape: Round
- Winding: Automatic
- Hands Setting: Crown
- Seconds Hand: Small seconds
- Escapement: Lever (Swiss, English, Glashütte)
- Date, Day, Month...: Date & Day
- Jewels: 33
- Setting Lever Screw/Pin Position: Right
- Balance Position: Left (240 - 360°)
- Shock Protection: Similar to Incabloc
- Beats per hour: 21,600
- Balance Type: Glucydur
- Power Reserve: Approx. 45 hours
- Production Period: Presumably at least since 2008
- Identification: Movement listed on the Sea-Gull website
- External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-60#post-8551029
- Country: China
- Contributor ©: Uhrforum.de member Badener (Andreas Kelz)
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