Equipped with an exclusive Ringlock system and a 5mm-thick sapphire crystal, the Rolex Deepsea dive watch is built to withstand massive pressures exerted by water at depths of 3,900m, which is roughly equivalent to placing an object of three tonnes on the

Equipped with an exclusive Ringlock system and a 5mm-thick sapphire crystal, the Rolex Deepsea dive watch is built to withstand massive pressures exerted by water at depths of 3,900m, which is roughly equivalent to placing an object of three tonnes on the watch.

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