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Minerva 20
Ligne: 19'''
Jewels: 15
Power Reserve: 35 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: 1928-
Diameter: 42.7 mm
Height: 4.5 mm
Hands: 1.60 x 0.85 / 0.27 mm
The Minerva 20 watch movement is an open face calibre that was used during the period 1928-. It features a Breguet hairspring and includes stem wind and set functionality, a sub second function, and a hack feature. It is uncertain whether this calibre was also employed in Junghans watches.
The Minerva 20 features the following functions:
- Hack feature
- Stem wind and set
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.50 x 0.210 x 440 x 16.0 mm | GR4362 | 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 |
|---|
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