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Fontainemelon 631
(Font)
Ligne: 8.75'''
Jewels: 17
Power Reserve: 47 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1965
Diameter: 19.7 mm
Height: 3.55 mm
Hands: 1.30 x 0.60 mm
The Fontainemelon 631 watch movement is a manual wind movement that features a sub-second function. It was in use around 1965. There are no known differences between the Fleurier 250, 251, 253, 255, and 260 movement models.
The Fontainemelon 631 features the following functions:
- Manual Winding
- Sub Second
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.60 x 0.080 x 280 x 8.0 mm | Manual | Buy mainspring | |
| 1.60 x 0.085 x 260 x 7.5 mm | GR4455 | 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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