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ETA 1203
Ligne: 18.5'''
Jewels: 15
Power Reserve: 34 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1925
Diameter: 41.8 mm
Height: 4.75 mm
Hands: 2.00 x 1.20 / 0.30 mm
The ETA 1203 watch movement is an open face calibre with a height listed between 5.0 and 5.05mm in catalogs. It can be identified after the balance-staff dimensions. Not much is known about the differences between the 247 and 249 models. The movement features stem winding and setting, as well as a sub second function. It was commonly used around 1925.
The ETA 1203 features the following functions:
- Stem wind and set
- Sub Second
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 2.00 x 0.180 x 500 x 15.0 mm | GR5861 | Manual | Buy mainspring |
| 2.00 x 0.190 x 430 x 15.0 mm | Manual | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
Documents
Parts Listing
| Part Description | Reference # | Alternate | Buy |
|---|
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