| Brand | Sjöö Sandström |
| Manufacturer | ETA / Valjoux |
| Caliber Number | SS G4 |
| Base Caliber | ETA/Valjoux 7754 (top grade) |
| Movement Type | Automatic |
| Jewels | 25 |
| Power Reserve | 44 hours |
| Vibrations Per Hour | 28,800 |
| Shock System | Incabloc |
| Hacking? | Yes |
| Features | Hours, minutes, small seconds, central chronograph seconds, day, second and third time-zone |
| Country of Manufacture | Switzerland |
| Known Models | UTC Extreme |
The pictured example of the caliber SS G4 from a Sjöö Sandström which is a modified ETA 7754. This movement was found in this Sjöö Sandström UTC Extreme II. This movement has been custom decorated by the manufacturer.
All our timepieces are assembled by hand, one by one, at the Sjöö Sandström workshop in Stockholm.
Please share your experiences and thoughts about this Sjöö Sandström version of the ETA/Valjoux caliber 7754 in the comments section below…
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