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FAQs

Is the Seiko Mod Aquanaut watch automatic?

Yes — it is a self-winding automatic watch, meaning it runs from wrist movement and does not require a battery. 

What size is the Seiko Aquanaut mod?

Most models feature a~40–41mm case diameterwith a slim profile (~12mm), making it comfortable and versatile on most wrists

Is the Seiko Aquanaut mod waterproof?

Typically rated around 3 ATM (30m), meaning it is suitable for daily wear, rain, and splashes—but not for diving