Dive Watch Guide: How to Choose One
A dive watch isn't only for divers. It's the everyday watch at its best: tough, legible, water resistant and built to last. But behind the name are specific criteria. Here is what really matters when you choose one, and what is mostly marketing.
What is a dive watch?
It started as an instrument. Before dive computers, divers relied on their watch to know how long they had been underwater, and so how much air they had left. That created three requirements that still define the genre: serious water resistance, a bezel to time the dive, and perfect legibility in the dark.
There is an international standard, ISO 6425, that sets the tests a watch must pass to be officially called a "diver's watch". Few watches are certified, and it isn't essential for recreational use. What matters is that the watch is designed to those principles.
5 things to look for
1. Water resistance: 200m is the benchmark
The number on the caseback isn't a real diving depth: it's a laboratory test pressure. A "50m" watch handles rain and splashes, not regular swimming. From 100m you can swim. 200m is the standard for a real dive watch: you can dive with it, jump off a boat or wear it in the shower without thinking.
Two details make the difference: a screw-down crown that seals the case, and gaskets that are checked at every service.
2. The unidirectional bezel
This is the diver's tool. You line up the bezel marker with the minute hand as you enter the water, and read the elapsed time at a glance. It only turns one way (anticlockwise) for safety: if it gets knocked by accident, it can only show more time elapsed, never less. A good bezel has crisp clicks and a sure grip, even with gloves on.
3. Legibility
Large indices, clearly different hands (the minute hand should be instantly recognisable) and generous lume. Underwater or at night, you should read the time without thinking. A busy dial is a flaw on a dive watch, not a feature.
4. Toughness: sapphire crystal and steel case
Sapphire crystal is almost scratch-proof, which matters on a watch you wear everywhere. 316L stainless steel remains the reference for the case: it resists seawater and ages well. Anti-shock and anti-magnetic protection complete the package, especially if the watch lives next to a phone or a laptop.
5. The movement: automatic or quartz
Quartz is accurate and needs little maintenance. An automatic movement winds itself with the motion of your wrist, has no battery to change and can run for decades if it's serviced. That is why an automatic dive watch gets handed down. Swiss calibres such as the Sellita SW200-1 are a reliable reference and easy to service anywhere in the world.
Bracelet: steel, rubber or integrated?
Rubber is the most practical in the water. Steel works everywhere, from the boat to the office. An integrated bracelet, which flows directly from the case, gives a cleaner line and remarkable comfort. It's a style of its own, explained in our integrated bracelet sports watch guide.
What should you spend on a good dive watch?
Today you can find excellent automatic dive watches with Swiss movements for under US$1,000, especially from independent brands. Above that, you mostly pay for the name, the finishing or complications. Below it, check three things: sapphire crystal, 200m water resistance and a serviceable movement. We compared the ones worth buying in our pick of the best dive watches under $1,000.
Looking after it
- Rinse the watch in fresh water after the sea or the pool, with the crown closed.
- Never operate the crown underwater.
- Have the water resistance checked every two or three years if you swim or dive often, and service the movement roughly every five years. Everything is explained in our guide to servicing an automatic watch.
The Elemental, our dive watch
We designed the Elemental to these principles, with what makes Bausele: Australian design and Swiss precision.
- 40mm case, 12.2mm thick, integrated bracelet
- 200m water resistance
- Swiss automatic Sellita SW200-1 movement, regulated to ±12 seconds per day
- Sapphire crystal, anti-shock and anti-magnetic protection
- Unidirectional bezel with two scales: 60 minutes for diving, and a 12-hour scale to track a second time zone
- In the crown, a fragment of a real place: sand from Sydney's Northern Beaches in the Oceanic Blue. More on The Crown page.
Every Elemental is made to order, in limited order windows: nothing sits in a warehouse. Discover the Elemental and the next order window.
Frequently asked questions
Can you swim with a 100m water-resistant watch?
Yes, for swimming. For scuba diving or jumping into the water regularly, choose 200m and a screw-down crown.
Why does a dive bezel only turn one way?
For safety. If it moves by accident, it shows more time elapsed, never less, which makes the diver surface earlier, never later.
Can you wear a dive watch with a suit?
Yes, as long as it stays at a reasonable size (38 to 41mm) and thickness. It's the most versatile watch there is.
Do you need ISO 6425 certification?
For professional diving it's a real guarantee. For recreational diving and everyday life, a watch designed to those principles (200m, unidirectional bezel, legibility, screw-down crown) is more than enough.
How accurate is an automatic dive watch?
A good automatic watch with a Swiss movement typically drifts a few seconds a day. The Elemental is regulated to ±12 seconds per day cased, and owners often see much better on the wrist.