Swatch · Sistem51 Irony
Swatch Sistem Snow (reference YIS406) — specifications, measurements, watch images and standardized wrist-fit previews for informed comparison.
A 42 mm sport / everyday watch with automatic movement (Sistem51) and 30 m water resistance.
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Strengths and considerations
Strengths
- Sport / Everyday design; Automatic movement; 30 m stated water resistance.
Considerations
- Swimming or demanding water use.
See sources
Manufacturer and technical references used to verify this watch specification.
Specifications last verified: 2026-08-14.
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