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Tissot 709-2
Ligne: 8.75'''
Jewels: 15
Power Reserve: 34 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: 1917-
Diameter: 19.8 mm
Height: 3.25 mm
Hands: 1.30 x 0.60 mm
Base: Fontainemelon ROBERT
The Tissot 709-2 watch movement was produced by FHF, a company that operated several factories in Fontainemelon, including one named after the founders, Fabrique Robert. The calibers produced in this factory, such as Font Robert, FF Robert, and FHF Robert, are recorded in few registers. The Tissot 709-2 movement is based on the downsized version of the FHF Robert 8.75''' caliber to 8'''. Reliable information is currently unavailable regarding the differences between Gruen 100, 101, 620 through 623, 626, and 627. The Tissot 709-2 movement is a manual wind movement with sub-second function, and it was used from 1917 onwards.
The Tissot 709-2 features the following functions:
- Manual Winding
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.15 x 0.100 x 215 x 7.5 mm | Manual | Buy mainspring | |
| 1.10 x 0.100 x 220 x 8.0 mm | GR2610 | Manual | Buy mainspring |
| 1.10 x 0.090 x 220 x 7.0 mm | GR2591 | 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 |
|---|---|---|---|
| MAINSPRING 1.10-.09-220 7 | MS-212C | GR 2591 | Buy part |
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