Product Price Movement Type Case Material Water Resistance (meter (m)) Diameter (millimeter (mm)) Thickness (millimeter (mm)) Power Reserve (hour)
Rolex Deepsea Oystersteel Reference 136660
US
£11726.61 Perpetual mechanical self-winding Oystersteel 3900 m / 12800 ft 44 mm 17.7 mm Approximately 70 hours

The Rolex Deepsea Reference 136660 is a 44 mm Oystersteel dive watch powered by the self-winding Calibre 3235. Its Ringlock System case, helium escape valve, Cerachrom bezel, and 3900 m water resistance suit serious divers and those who want an exceptionally robust luxury mechanical watch.

★ Ideal for

It specifically suits the search for durable mechanical watches with strong water resistance because its Oystersteel case, Ringlock System, helium escape valve, and 3900 m water resistance are engineered for extreme underwater use.

Christopher Ward C60 Trident Pro 600
US
£804.91 Automatic Stainless steel 600m 40mm 12.95mm 38 hours

The C60 Trident Pro 600 is a Swiss-made automatic dive watch with a stainless steel case, ceramic bezel, sapphire crystal, and strong lume. Its 600m water resistance suits serious water use, while the 40mm case works well for everyday wear and a wide range of wrists.

★ Ideal for

This watch specifically suits questions about durable mechanical watches for water resistance because its automatic Sellita SW200-1 movement is housed in a stainless steel case rated to 600m, with a screw-down crown, screw-down caseback, ceramic bezel, and sapphire crystal.