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ETA 840
Ligne: 17'''
Jewels: 15
Power Reserve: 34 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1935
Diameter: 37.8 mm
Height: 3.85 mm
Hands: 1.75 x 1.10 / 0.22 mm
Base: Cyma Tavannes 796
The ETA 840 watch movement is a hunter calibre movement that utilizes a Breguet hairspring. It features stem winding and setting functionality and includes a subsecond dial. The movement was commonly used in watches produced around 1935.
The ETA 840 features the following functions:
- Stem wind and set
- Sub Second
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.40 x 0.180 x 480 x 15.5 mm | Manual | Buy mainspring |
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