The K-03 Diver

Born from a love of the rugged tool watch design of diving timepieces, the K-03 is no-nonsense, dependable timepiece made to last.

As more than just a competent divers’ watch, your K-03 links you to the fascinating history of military and sporting dive watches going back to the 1930s. A slice of history right there on your wrist.

Product Range

Designed for anything

The Geckota K-03 was born from a love of the rugged tool watch design of diving timepieces. The history of diving dates back centuries with the introduction of watches being late to the party only taking off around the 50's The initial watch companies who pioneered water resistant watch cases, changed and shaped the watch world forever. This led to diving watches being one of, if not the most popular, recognisable and iconic types of wrist watches to date.

The K-03 has been in our range for nearly four years with this being the 1st evolution of the watch. The core characteristics of the K-03 haven't changed since 2014, however the watch has gone through some noticeable updates throughout the years...

Wrist Presence

Originally launched with two different dial designs (California and a version of the one you see today) the K-03's dial now comes with subtle design upgrades such as a longer seconds hand with new counter balance, re-designed date window to make it more legible, a brand new detailed case back and new bezel options. The 45mm vertical brushed case on the K-03 is a tough and chunky design made for those who like the true tool watch aesthetic. To give it that touch of quality, the K-03 features highly polished case details which catch the light and acts as a reassuring reminder that even though it's a tough diver, style doesn't need to be compromised.

Finally the K-03 is now sold with a high quality, stainless steel Geckota metal strap. The strap uses solid ends to fit the K-03 case perfectly. To match the understated polishing of the case, the metal strap also takes the subtle approach with a hint of polishing throughout.

Make it your own

With our large collection of watch straps ranging from metal and rubber to nylon and leather, we love the ability to be able to change a timepieces whole look with a simple change. With the K-03 we wanted to take this level of individuality to a whole new level. That's why the K-03's bezel is now fitted with four neatly hidden machined grub screws. This means with just a screwdriver, you can easily switch the bezel on your K-03 to another colour. This means when combined with a new strap, the K-03 Diver can be a complete different watch!

This features is perfect for all watch enthusiasts out there who regularly want a new look for their tough tool watch.

It won't let you down

The Geckota K-03 is powered by one of the leading movements for micro brands, the SII NH35 Automatic movement. This movement is an extremely reliable, well-made movement which features in many pieces from the Geckota range.

The movement is equipped with 24 jewels and can also be hand wound. For maximum efficiency, the NH35 features bi-directional winding and when fully wound it has a power reserve of 41 hours. This movement also has a hacking feature where the seconds hand stops when the time is being set, perfect for any tool watch made to be used.

Whether you take your K-03 down to the deepest areas of the ocean exploring, save for weekends/holidays, or it's your everyday desk diver the K-03 can handle it all with ease.


Geckota watches use Swiss made Super-Luminova® pigments. Swiss Super-LumiNova® is non-radioactive, REACH compatible, highly temperature resistant and resistant to environmental influences.

Watch Features

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Matte finish with applied indices

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316L Stainless Steel

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NH35 Automatic Movement

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Water Resistance

500 m / 1640 ft

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316L Stainless Steel Bracelet

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Sapphire Crystal with anti-reflective coating

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Date Option with quick-set function

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Case Diameter


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Case Thickness


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Lug-to-Lug Length


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Lug Width