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Orient 28504
Ligne: 8.75'''
Jewels: 17
Power Reserve: 41 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1970
Diameter: 19.7 mm
Height: 3.7 mm
Hands: 1.30 x 0.80 x 0.20 mm
The Orient 28504 is a mechanical watch movement that features manual winding and a sweep second function. It was commonly used during the 1970s. While it shares similarities with the Felsa 780, specific differences between the two movements are not known.
The Orient 28504 features the following functions:
- Manual Winding
- Mechanical Movement
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 4283 | Ordinary/None | Buy staff |
| 4283 | Incabloc | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.25 x 0.090 x 240 x 7.5 mm | GR3095 | Manual | 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) |
|---|
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Parts Listing
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