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Unitas 333
Jewels: 17
Power Reserve: 38 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: 1939-1942
Diameter: 23.3 mm
Height: 5.5 mm
Hands: 1.55 x 0.85 x 0.20 / 0.20 mm
Base: Bulova 10AH
The Unitas 333 watch movement, manufactured from 1939 to 1942, features a Breguet hairspring and incorporates a coupling mechanism through swiveling hand pinion. It holds the distinction of being the smallest diameter serial-produced chronograph movement. The movement offers the functions of a manual-wind chronograph with a 60-second counter, a sub-second dial, and a sweep seconds hand.
The Unitas 333 features the following functions:
- Chronograph Movement
- Manual-wind chronograph, 60s, pillar wheel
- Sub Second
- Sweep Seconds
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.40 x 0.100 x 300 x 9.0 mm | GR3664 | Manual | Buy mainspring |
| 1.40 x 0.110 x 260 x 8.0 mm | GR3696 | Manual | Buy mainspring |
| 1.30 x 0.100 x 300 x 9.0 mm | GR3254 | 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 |
|---|---|---|---|
| BALANCE COMPLETE | 721/800 | 721/800 | Buy part |
| MAINSPRING 1.40-.11-260 8 | MS-510H | GR 3696 | Buy part |
| PALLET ARBOR | 72S/100P | 714/ENI 1120 | Buy part |
| ROLLER 200X95X42 | 82S/75R | Buy part | |
| STAFF | 100/175 | BUL 10AN | Buy part |
| STEM | 200/186F | 16A/BUL 10AH | Buy part |
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