AS 557
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6 3/4 x 11”’ | Hand Wind | Swiss Lever | No Seconds |
Remarks:
- Visually identical on both sides to AS 525 from the Classification Horlogère of 1936. 525 and 557 possibly differ only by a minimally altered setting lever spring
- The setting lever spring on the movement shown is broken
- Listing ID: 3710
- Manufacturer / Brand: AS
- Caliber: 557
- Size in French Lignes: 6 3/4 x 11'''
- Size range mm largest diameter: 22 - 31 mm
- Shape: Form
- Winding: Manual (Crown)
- Hands Setting: Crown
- Seconds Hand: None
- Escapement: Lever (Swiss, English, Glashütte)
- Date, Day, Month...: None
- Jewels: 15
- Setting Lever Screw/Pin Position: Left
- Balance Position: Right (0 - 120°)
- Shock Protection: None
- Beats per hour: 18,000
- Balance Type: Monometallic screw balance
- Power Reserve: Unknown
- Production Period: Unknown, probably around 1936
- Identification: Dial side marked with AS 557.
- External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-20#post-3134674
- Country: Switzerland
- Contributor ©: Uhrforum.de member Badener (Andreas Kelz)
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