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Brand: | Sinn | 
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| Family: | |||
| Height: | |||
| Jewels: | |||
| Reserve: | hours | ||
| Frequency: | |||
| Winding: | Hand winding | ||
| Diameter: | |||
| K-1523343477 | Complications: | Regulator | |
| Hands: | Central Minute Hand, Hour Hand at 12:00, Small Seconds Hand at 6:00 | ||
| Distinguishing Technical Characteristics | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
 Hand-Winding  Clockwise Balance Cock  Triovis Regulator |
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| Production: 2006 – Current | |||||||||||
| 1910s | 1920s | 1930s | 1940s | 1950s | 1960s | 1970s | 1980s | 1990s | 2000s | 2010s | 2020s |
Cal. SZ04 is a regulator movement developed in-house by Sinn based on the ETA/Unitas 6498-1 ebauche. This was the first (and so far only) Sinn SZ movement based on an ebauche other than the 7750 automatic chronograph.
Sinn focused on development of a classic regulator movement based on the proven hand-winding Unitas 6498 ebauche. Sinn also added numerous technical modifications, including a Glucydur screwed balance, the Triovis fine adjustment system, and a Nivarox 1 balance spring. The movement was finished with Geneva stripes and blued screws.
This movement was introduced at BaselWorld in 2006 in the Sinn Model 6100 Regulateur line.
Images are taken from official publications and are used here for commentary and educational purposes. Copyright is held by the original owner as noted.