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ETA 878
Ligne: 6.75 x 8'''
Jewels: 17
Lift Angle: 50°
Power Reserve: 40 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: 1967-1968
Size: 15.3 x 18.2 mm
Height: 3.45 mm
Hands: 1.10 x 0.60 mm
Base: Aurore 120
The ETA 878 watch movement, along with similar variants such as the Aurore-Villeret 120, Bulova 6AH, and FHF 120, are considered to be mostly equivalent. Interchangeability data from different movement registers are conflicting, so only calibres mentioned in multiple registers or those that could be cross-checked for equivalence are listed. It is worth noting that Bulova calibres possess design details that differ from the FHF calibres, suggesting that the ebauches were likely sourced from Aurore-Villeret. Specific differences between the 6CL and 6CT calibres are unknown. The 6CT movement features manual winding, shock protection, and operates using a mechanical mechanism. It was used primarily during the period of 1967-1968.
The ETA 878 features the following functions:
- Manual Winding
- Mechanical Movement
- Shock Protection
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.20 x 0.070 x 260 x 7.0 mm | GR2857 | 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) | |
|---|---|---|---|
| See More |
Documents
Parts Listing
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