SpecStudio
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Swatch Sistem Sea
Ref. SUTN403
$170Sold out
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Case
- Diameter
- 42mm
- Thickness
- 13.9mm
- Lug-to-lug
- 50.6mm
- Material
- Polymer
- Finish
- Polymer
- Water resistance
- 30m
Crystal & dial
- Dial color
- Blue
Movement
- Type
- Automatic
- Hacking
- Yes
- Hand-winding
- Yes
Design language
- Case shape
- round
- Dial style
- standard
- Bezel
- smooth_polished
- Bracelet
- leather_strap
AI-detected from the product image
Sistem collection · 7 watches
Market
Retail$170
eBay listings
- Mens Swatch SISTEM 51 Automatic SISTEM SEA Flex SUTN403A 42MM BluePre-owned - Good · US$95
- Swatch SISTEM 51 Automatic SISTEM SEA SUTN403 NEW IN BOXNew with box and papers · US$100
- Swatch SISTEM 51 Automatic SISTEM SEA SUTN403 NEW IN BOXNew with box and papers · CA$141
Lowest displayed prices first.
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Community
Owners widely report inconsistent timekeeping with the Swatch Sistem Sea, with some experiencing gains of 30 seconds to 7 minutes per night off-wrist, while others find their watches to be accurate. The movement is hermetically sealed and not serviceable, leading to concerns about long-term lifespan, though some owners report their Sistem51 watches remain reliable after several years. The Swatch Sistem Sea is positioned as an accessible Swiss automatic for newcomers, featuring a 90-hour power reserve. On balance, owners and reviewers find the Swatch Sistem Sea to be an appealing entry-level automatic, with its value and accessibility being the primary draws despite timekeeping variability.
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