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The simple science of quartz watches
Learn how a battery, a tiny crystal and a simple circuit work together to keep your quartz watch running with highly reliable accuracy every day.
Luminox
Navy Seal 4230 Series
Ref. XS4231SET
Watch details and strap advice
- Case diameter
- 45 mm
- Case height
- 13 mm
- Case material
- Stainless Steel
- Case shape
- Round
- Water resistance
- 200 m
- Movement
- Quartz
- Caliber
- Ronda 715 LI
- Dial
- Black
The Luminox Navy Seal 4230 Series takes a 23 mm strap: measure between the lugs and that is the only number you need. Built for water, it wears naturally on rubber or a nylon NATO; a leather strap keeps it for dry days. With a 45 mm case and 200 m of water resistance, a thicker strap balances the case. Quartz movement. Most straps here come with quick-release spring bars, so the swap takes a minute and no tool.
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