Sjoo Sandstrom caliber SS G4

Sjöö Sandström Caliber SS G4

Sjoo Sandstrom caliber SS G4

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…

Seagull Caliber St19

Join our mission to spread movement awareness!

Members Online

  • jmrtsus

Recent Forum Posts

Trending Comments


Miyota Caliber 2115

El casio marlin duro mvd 106 usa el miyota 2115. Cuando busco el repuesto aparecer…


Seiko Caliber 5M82

I have a cal. 5m83 in a watch that was bought for me, by my…


Ronda Caliber 515

It looks like a very good and cheap caliber. I have it in Roamer Power…


Sellita Caliber SW280-1

They rotate in phase with the lunar cycle. Which is 29 days, 12 hours, 44…


Miyota Caliber 2035

Why not just use another Seiko Y121? My cheap "George" Walmart $8.88 watch has one,…


Would love your thoughts, please comment.x