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Felsa 4120
Ligne: 11.5'''
Jewels: 17/21
Power Reserve: 44 hrs
Frequency: 21600 vph
Type: Manual Wind
Period used: ~1965
Diameter: 26 mm
Height: 3.9 mm
Hands: 1.10 x 0.60 mm
Base: Fontainemelon 21
The Felsa 4120 is a manual wind mechanical watch movement with a sub second function, date function that can be set by changing 20-24h, and a calendar feature. It was in use approximately around 1965.
The Felsa 4120 features the following functions:
- Calendar: set by changing 20-24h
- Manual Winding
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 5311 | Ordinary/None | Buy staff |
| 5311 | Incabloc | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.45 x 0.100 x 320 x 9.0 mm | GR3954 | Manual | Buy mainspring |
| 1.40 x 0.110 x 320 x 9.5 mm | GR3699 | 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) |
|---|
Documents
Parts Listing
| Part Description | Reference # | Alternate | Buy |
|---|---|---|---|
| CANNON PINION, HT 2.86 | 240/1644 | /FF 821-4 | Buy part |
| CENTER WHEEL | 201/973 | Buy part | |
| JEWEL, INC#56 LOWER CAP 110X14 | 400/1620 | 922.11/922.41 | Buy part |
| JEWEL, INCA BALANCE 122X38X09 | 400/1693 | 911.09/INCA #70 | Buy part |
| JEWEL, INCA LOWER CAP 110X22 | 400/1829 | 921.11/INCA #55 | Buy part |
| SHOCK SPRING, LOWER INCABLOC | 400/1621 | 975.03/INCA #48 | Buy part |
| SHOCK SPRING, UPPER 221X157 | 400/1775 | 974.03/INCA #46 | Buy part |
| SHOCK UNIT, LOWER | 400/1694 | 906.20.09 | Buy part |
| STEM | 200/1607F | 200/FF 81 | Buy part |
| STEM, GENUINE | 401/639 | Buy part | |
| UPPER SHOCK UNIT 312X09 | 400/1839 | 934.12.312.09 | Buy part |
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