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Felsa 381
Ligne: 11.5'''
Jewels: 21/25
Power Reserve: 38 hrs
Frequency: 21600 vph
Type: Automatic
Period used: ~1975
Diameter: 26 mm
Height: 5.8 mm
Hands: 1.50 x 0.90 x 0.21 mm
The Felsa 381 is an automatic watch movement that features a sweep second hand, shock protection, and a day and date display. The day function can be set by changing the time between 18:00 and 23:30 hours, while the date function can be set by changing the time between 21:00 and 24 hours. This movement is an example of a calendar watch and was in use around 1975.
The Felsa 381 features the following functions:
- Automatic Winding
- Calendar
- Date: set by changing 21:00-24h
- Day: set by changing 18:00-23:30h
- Shock Protection
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.30 x 0.100 x 340 x 10.0 mm | GR3256X | 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 |
|---|---|---|---|
| BARREL ARBOR | 195/1290 | Buy part | |
| BARREL COMPLETE W/MAINSPRING | 182/1233 | 182/1233 | Buy part |
| CANNON PINION, SS HT 2.45 | 245/1081 | /DUR 7523 | Buy part |
| CLUTCH WHEEL | 407/1034 | /DUR 7427-3 | Buy part |
| FOURTH WHEEL, SS HT 5.94 | 227/660 | Buy part | |
| HOUR WHEEL, SS HT 1.80 | 255/809 | Buy part | |
| MAINSPRING 1.30-.10-340 10 | MSS-WA8 | GR 3256-X | Buy part |
| MINUTE WHEEL | 260/1068 | /DUR 7425-3 | Buy part |
| RATCHET WHEEL | 415/1239 | /DUR 7428-1 | Buy part |
| REGULATOR W/STUD HOLDER | 301/1334 | 307/DUR 7410 | Buy part |
| STEM | 200/DUR 7427-2 | /DUR 7427-2 | Buy part |
| STEM, .5 PILOT T10 | 200/1721F | 1ST EXEC/DUR 7410 | Buy part |
| STEM, .64 PILOT TAP 10 | 200/1765F | 401/DUR 7410 | Buy part |
| STEM, MALE OA 8.23 PIV .64 | 360/509 | 360/DUR 7410 | Buy part |
| THIRD WHEEL | 210/1344 | 210/DUR 7410 | Buy part |
| WINDING PINION | 410/1258 | /DUR 7428 | Buy part |
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