Lorsa 237AT
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10 1/2”’ | Hand Wind | Swiss Lever | Indirect Sweeping Seconds |
Remarks:
- The movement shown is missing the driving wheel over the third wheel that drives the sweep seconds pinion
- Movement family:
- Lorsa 237A: 10 1/2”’, hand winding, small seconds
- Lorsa 237AT: 10 1/2”’, hand winding, sweeping seconds
- Listing ID: 13065
- Manufacturer / Brand: Lorsa
- Caliber: 237AT
- 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: Sweeping seconds (central seconds)
- Escapement: Lever (Swiss, English, Glashütte)
- Date, Day, Month...: None
- Jewels: 15
- Setting Lever Screw/Pin Position: Left
- Balance Position: Bottom (120 - 240°)
- Shock Protection: None
- Beats per hour: 18,000
- Balance Type: Monometallic screw balance
- Power Reserve: Unknown
- Production Period: Unknown, probably around 1950
- Country: France
- Identification: Marked with the Lorsa logo and 237A on the dial side. The normal 237A has a small second, the movement with center second is a 237 AT.
- Contributor ©: Uhrforum.de member Badener (Andreas Kelz)
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