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ETA 2852
Ligne: 8'''
Jewels: 15
Frequency: 18000 vph
Type: Manual Wind
Period used: 1917-
Diameter: 18.1 mm
Height: 3.25 mm
Hands: 1.05 x 0.60 mm
Base: Fontainemelon ROBERT
The ETA 2852 watch movement, produced from 1917 onwards, is known to have been based on the FHF Robert 8.75''' calibre. It is believed to have been downsized to 8'''. The Gruen 100, 101, 620 through 623, 626, and 627 calibres are also thought to be derived from this movement. The ETA 2852 movement features manual winding and a sub-second function.
The ETA 2852 features the following functions:
- Manual Winding
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.06 x 0.080 x 190 x 6.5 mm | Manual | Buy mainspring | |
| 1.00 x 0.080 x 200 x 6.5 mm | GR2412 | 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 |
|---|---|---|---|
| ARBOR, THREADED PALLET .90 | 72S/153P | 714/GRU 103 | Buy part |
| MAINSPRING 1.00-.08-200 6,5 | MS-1513A | GR 2412 | Buy part |
| ROLLER 170X70X36 | 82S/26R | Buy part | |
| STEM | 401/GRU 103 | Buy part |
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