Family: SZBased on ETA SA 7750
The SZ04 is an automatic movement manufactured by Sinn Spezialuhren. It is based on the Valjoux 7750 and receives Sinn-specific modifications including the addition of a GMT complication. The movement is used in select models within Sinn's 303 family. Introduced in 2019, the caliber remains in production.
Last updated 29 Apr 2026Suggest a correction
TECHNICAL SPECIFICATIONS
Movement Type
Automatic
Display Type
Analog
COMPLICATIONS
GMT
QUICK FACTS
BRAND
TYPE
AutomaticSTATUS
In ProductionMANUFACTURE
ÉbaucheLAUNCH YEAR
2019BASED ON
ETA SA 7750CALIBER FAMILY
SZFOR WATCH DEALERS
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