All diving equipment should be overengineered.

That way, if an issue arises, your gear will have some extra safety and capabilities built in.

This is why dive watches frequently feature a depth rating of 200m, despite the fact that in all but the most extreme diving conditions, that depth rating is more than double what is actually necessary.

Price for Watch €460.48

★Early Bird★Watchdives WD007 39mm Titanium NTTD Dive Watch

Brand: Watchdives
Model: WD007-39mm
Movement: Japan NH35/NH38 automatic movement, 41 hours of energy storage.
Case material: Grade 2 titanium +anti-fingerprint coating + hardened coating
Case back: Grade 2 titanium
Helium escape valve: Yes
Bezel: 120 Clicks unidirect rotational bezel
Bezel insert: vintage black: aluminum bezel insert
Enamel Black: matte ceramic bezel insert
Watch mirror: domed sapphire crystal with clear AR coating.
Luminous: Swiss C3 green super luminous for vintage black dial. Swiss BGW9 blue super luminous for enamel black dial.
Crown: Screw-Down+Genuine Helium escape valve crown
Case back: Screwback Case
Band: nylon band or stainless steel mesh bracelet.
Watch Dimension
Bezel diameter: 39 mm
Lug to lug: 46 mm (lug to lug)
Case thickness: 13.5mm (including domed glass)
Between Lugs: 18mm 
Our service
Warranty: 3 years
Returns policy: Please check the website Return / Exchange / Warranty Policy.”
Style: automatic watch, dive watch, luxury watch
Package: watch, box, warranty card, user manual.

Price for Watch $219.00

If you wish to advance farther, you must finish highly specialized and strictly non-casual training.

For all but a few elite divers across the world, 200 meters of water resistance is sufficient.

Anything else is purely for aesthetic purposes on the dive boat.