Clockwork orange

The last colour you see before the world goes black is orange.

Which is why orange watches are essential for scuba divers

Look stylish underwater

1. Omega SeaMaster Planet Ocean

£2,000, omegawatches.com

2. Doxa Sub 750T Dirk Pitt

£1,500, doxawatches.com

3. TechnoMarine Abyss

£295, technomarine.com

4. Traser HS P 6504 Diver Orange

£200, traserh3watches.com

5. Audemars Piguet Royal Oak Offshore

£12,800, audemarspiguet.com

6. Hermès Clipper Chronograph

£2,100, hermes.com

The iconic, all-mechanical diver’s watch, waterproof to 300m and chronometer-certified (ie, it’s very accurate).Re-issue of the 1967 watch designed for a fictitious adventurer, Clive Cussler’s Dirk Pitt. Waterproof to 750m.A Swiss-made quartz timepiece that’s waterproof to a mind-boggling 10,900m. The bubble floating inside is deliberate.Water-resistant to 200m, the tritium dial on the H3 is 100 times brighter than a standard watch.Limited-edition diver’s watch with tachymeter, which allows you to monitor the speed of passing fish... or something.This Swiss-made watch proves that Hermès is just as comfortable designing for the depths as it is for the catwalk.