Collection: Casio Duro

Casio Duro for swimming and water use

Water-resistance ratings and Casio guidance define whether a specific Duro suits swimming or another water activity. A dive-style bezel supports elapsed-time reading, but the appearance alone does not set the use case.

Resin strap or metal bracelet

A resin strap feels light and flexible around water, while a metal bracelet gives a heavier, more structured presence. The band changes both comfort and the visual character of the case.

Dial and bezel colour

High contrast between hands, markers and dial supports quick reading. Black stays easy to pair, while blue, green, gold-tone or two-colour bezels create a stronger accent.