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Otero 74
Ligne: 10.5'''
Jewels: 15/17
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1935
Diameter: 23.3 mm
Hands: 1.40 x 0.80 mm
The Otero 74 watch movement is a bimetallic screw balance mechanism, belonging to a series of movements (86, 88, 89, 136, 138, 285, and 327) with differences that are not clearly documented. This movement features functions such as manual winding and a sweep second hand. It was commonly used around the year 1935.
The Otero 74 features the following functions:
- Manual Winding
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 971 | Ordinary/None | Buy staff |
| 983 | Ordinary/None | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.70 x 0.095 x 320 x 9.0 mm | GR4870 | Manual | Buy mainspring |
| 1.70 x 0.100 x 290 x 9.0 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) |
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Documents
Parts Listing
| Part Description | Reference # | Alternate | Buy |
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