Delma Blue Shark IV Dive Watch Review

Thomas Grønfeldt SengerTorben Lonne
By
Thomas Grønfeldt Senger
Thomas been a scuba diver for more than 20 years, having both instructor and technical certifications. He's participated in scientific and documentation expeditions, including shark projects...
Torben Lonne
Editor and Co-founder at DIVEIN.com
Torben traveled to South East Asia for scuba diving and never really stopped his search for new adventures. His affinity for gear that works and his...

The updated Delma Blue Shark IV is the real deal for divers willing to make a smart investment. The aesthetic of the dive watch has been upgraded, and so has the driving force behind the automatic movement.

Now, the dial featuring a bright orange color that is also applied to the bezel looks neater and is available in black, orange, and blue. The unidirectional bezel was redesigned to offer divers both brushed steel and black-coated DLC-coated steel options.

Perhaps the most impressive feature of the upgrade is water-resistance, which has been increased to a whopping 5000 meters. You won’t find this depth in every other dive watch—and that’s exactly what gives Blue Shark IV a huge competitive advantage.

The 47 mm diameter fits nicely on a wrist without being too large or too small–it’s the sweet spot for beginners and professionals alike.

About this review

To help you find a Dive Watch that will fit your needs, we’ve tested, researched, and reviewed the best ones available today.
We test both in the water, diving in various conditions - and in our lab - so we can give you accurate answers on quality, performance, and the overall value.

Read about our test of Dive Watchs

Recommended in: Dive Watch

Things we like:

  • ETA 2824 movement offers a 38-hour reserve
  • Helium escape valve

Things we don't like:

  • You'll never need 5000 m water resistance

Specs & Features

Case diameter 47 mm
Lug-to-lug distance 55 mm
Lug/strap width 22 mm
Movement automatic
Case material stainless steel with screw-down crown
Strap/bracelet material stainless steel
Crystal sapphire crystal with AR coating
Bezel Black DLC coated stainless steel; unidirectional diver bezel
Water resistance 5000 m
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