- Lorsa 237BC
- manual wind
- sub second
- date
- 10.5”’
- Dm= 23.30mm
- H= 4.00mm
- 15/17 jewels
- f = 18000 A/h
- power reserve 35h
- family/generations:
- manual wind:
- 236: sub second
- 237AT: sweep second
- minor modifications base plate:
- Lorsa 237B: sub second
- Lorsa 237BC: sub second, date
- Lorsa 237BT: sweep second
- Lorsa 237BCT: sweep second, date
- automatic:
- Lorsa 237B(AUT): sub second
- Lorsa 237BC(AUT): sub second, date
- Lorsa 237BT(AUT): sweep second
- Lorsa 237BCT(AUT): sweep second, date