Launched over half a century ago, the

Fifty Fathoms hasn't aged a day. This iconic dive watch has proved impervious

to trends, although it is first and foremost its water-resistance that has won

the allegiance of security-conscious underwater explorers. Inspired by the original

Fifty Fathoms from 1953, this 500-piece limited edition is housed inside a

40.30-mm steel case, topped with a unidirectional rotating bezel covered with scratch-resistant

sapphire. The SuperLumiNova®-coated hour markers are the same shape as those on

the 1950s MIL-SPEC 1 model. The water-tightness indicator at 6 o'Clock also

makes a comeback. Movement-wise, this tribute watch dives into the very latest

innovations, with two series-coupled barrels that provide four days of power

reserve, and a silicon balance spring. A look through the sapphire back reveals

the gold oscillating weight with a NAC (platinum alloy) coating.