AM 422 Predecessor
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10 1/2”’ | Hand Wind | Swiss Lever | No Seconds |
Remarks:
- Predecessor of AM 422 without setting lever spring. See extra picture of AM 422 with setting lever spring.
- Listing ID: 12083
- Manufacturer / Brand: AM
- Caliber: 422 Predecessor
- Size in French Lignes: 10 1/2'''
- Size range mm largest diameter: 22 - 31 mm
- Shape: Round
- Winding: Manual (Crown)
- Hands Setting: Crown
- Seconds Hand: None
- Escapement: Lever (Swiss, English, Glashütte)
- Date, Day, Month...: None
- Jewels: 7
- Setting Lever Screw/Pin Position: Left
- Balance Position: Bottom (120 - 240°)
- Shock Protection: None
- Beats per hour: 18,000
- Balance Type: Mono-/Bimetallic screw balance with Breguet hairspring
- Power Reserve: Unknown
- Production Period: Unknown
- Country: Switzerland
- Identification: Similarity to AM 422 listed in Ebauches SA catalog from 1928.
- Contributor ©: Uhrforum.de member Badener (Andreas Kelz)
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