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Felsa 73
Ligne: 13.5'''
Jewels: 0/1
Power Reserve: 37 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1970
Diameter: 31.2 mm
Height: 4.5 mm
Hands: 1.90 x 1.10 x 0.26 mm
Base: Brac 190
The Felsa 73 watch movement, produced around 1970, incorporates a pin-lever escapement and features a sweep second hand. It is designed to be manually wound, and includes a date function that can be adjusted by changing 21:30-24h. Notably, the movement utilizes an ingenious mechanism where a single simple part replaces the setting-lever spring, yoke, and yoke spring. Additionally, the Felsa 73 movement employs an indirect minute hand friction clutch on the barrel and incorporates a flying barrel arrangement.
The Felsa 73 features the following functions:
- Date, set by changing 21:30-24h
- Manual Winding
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
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Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.25 x 0.110 x 630 x 14.0 mm | Manual | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
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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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