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ETA 2639
Ligne: 9.25'''
Jewels: 17
Power Reserve: 34 hrs
Frequency: 18000 vph
Type: Automatic
Period used: ~1955
Diameter: 20.8 mm
Height: 5.6 mm
Hands: 1.30 x 0.80 x 0.20 mm
Base: ETA 1309
The ETA 2639 watch movement is part of the equivalent automatic family Eterna 1319 through 1324 with ball bearing. The differences between the 1309 and 1315 are not known. This movement was primarily used during the approximate period of 1955. It features automatic winding and a sweep second function.
The ETA 2639 features the following functions:
- Automatic Winding
- Sweep second
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.35 x 0.085 x 260 x 8.0 mm | GR3486X | Auto | Buy mainspring |
| 1.35 x 0.080 x 250 x 7.5 mm | Auto | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) | |
|---|---|---|---|
| See More |
KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
Documents
Parts Listing
| Part Description | Reference # | Alternate | Buy |
|---|---|---|---|
| GIB/BOLT INCA 240X19 THICK | 400/1 | 180.19/INCA #11 | Buy part |
| JEWEL, INCA BALANCE 135X50X09 | 400/11 | 111.09/INCA#8 | Buy part |
| JEWEL, INCA UPPER CAP 120X27 | 400/7 | 121.11/INCA #5 | Buy part |
| JEWEL, UPPER CAP INCA 120X18 | 400/8 | 122.11/INCA #6 | Buy part |
| SCREW, INCA SHOCK 18X60 | 400/3 | 160.11/INCA #15 | Buy part |
| SHOCK SPRING, UPPER INCABLOC | 400/4 | 170.03/INCA #1 | Buy part |
| SHOCK UNIT, LOWER INCA | 400/32 | 100.20.9 | Buy part |
| UPPER UNIT D282 H9 | 400/832 | 100.11.282.9 | Buy part |
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