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Geplaatst op 06-05-2026 door marc hut
Some watches fade from view after just a few seasons. The Citizen NY0040 dive watches do exactly the opposite. These genuine Promaster Marine divers have been a favourite among watch enthusiasts for years, who are looking for a reliable automatic dive watch offering excellent value for money. And to be honest: we completely understand why.
Citizen NY0040-09EE Promaster Marine
The Citizen NY0040 is not a passing fad. This is a diving watch with a clear purpose. Robust, clear, mechanical and made for enthusiasts looking for a reliable watch that performs well even in wet conditions.
When this model was first released, there was a choice of several colourways. Nowadays, the blue and black versions are particularly appealing to those looking for a new Citizen NY0040. The other variants have long since sold out at Citizen. A shame, but it also shows just how popular this Promaster Marine diver has remained.
What makes the NY0040 special is that the watch doesn’t just look like a diving watch. It actually is one. The models are ISO 6425 certified. This means they meet the requirements for professional diving watches, such as pressure resistance, readability underwater and reliability in conditions where you can’t afford to be in any doubt. The Citizen NY0040 is water-resistant to 200 metres.
Both the case back and the crown are screw-down for optimal water resistance.
That diving certification is reflected in the practical details. The NY0040 has a screw-down crown and a screw-down case back to keep the watch properly water-resistant. Reading the time in the dark is no problem thanks to the luminous hands and hour markers.
A true diving watch has a bezel that allows you to track your dive time. Naturally, these Citizen Promaster Marine watches feature one too. The bezel isn’t just useful for divers, but also practical for everyday use when you need to quickly measure a duration. Think of sports, cooking, travelling or working.
Everything about the Citizen NY0040 is designed for ease of use. No unnecessary frills, just the functions you’d expect from a diver’s watch that isn’t designed merely for show.
Inside the case ticks the Citizen Miyota 8203 movement. This is an automatic mechanical movement powered by the movement of your wrist. If you wear the watch regularly, the movement winds itself.
So no need to change the battery. With a diving watch, that’s a major advantage, because the less often the case needs to be opened, the better it is for water resistance. That’s particularly important for a watch designed for use in and around water.
At 42 mm, the NY0040 is comfortable to wear and certainly not as bulky as many other diving watches.
When fully wound, the Citizen Miyota 8203 movement has a power reserve of approximately 40 hours. So if you put the watch away for a day, it will simply keep running.
It is precisely this kind of simple, reliable technology that makes the NY0040 a favourite among those who want to wear a proper watch. No unnecessary functions, no fuss, just a solid mechanical movement that does its job.
Ask watch enthusiasts about affordable automatic dive watches and the Citizen NY0040 is often mentioned. There are several reasons for this. The price is competitive, the specifications are robust and the model has now built a reputation as an indestructible classic.
The NY0040 is valued for its no-nonsense character, its genuine diving capabilities and its status as a reliable alternative in the world of Japanese divers. And all for an attractive price. You don’t need to rob a bank to afford it.
The Citizen NY0040 is cleverly designed. The crown is positioned on the left of the case, which is not only striking but also comfortable to wear. Especially when you’re actively using the watch, this placement prevents the crown from pressing into your hand.
The large hour markers, clear hands and substantial bezel give the watch a functional look. Everything is designed for readability and ease of use. And that’s handy, especially underwater.
The Citizen NY0040-09EE is the most classic version. The black dial, black rubber strap and silver-coloured steel case give this model that typical professional diver’s look. Sturdy, clear and timeless.
Diving bezel and luminous hands and hour markers: the NY0040 is perfect for any water sports enthusiast.
The Citizen NY0040-17LE features a blue dial and a blue rubber strap. This version feels just that little bit sportier and fresher, without the watch losing its serious character.
Blue is, of course, a perfect fit for a diving watch. It evokes water, depth and adventure. Technically, both models are virtually identical. Your choice therefore comes down mainly to appearance. If you’re going for the pure tool watch look, black is the safe choice. If you want a bit more colour on your wrist, blue is a wonderful option.
Also great for enthusiasts: many Citizen Promaster Marine models come in the iconic diving cylinder box. This makes the watch not only suitable to wear, but also a lovely gift or something to keep as part of your collection.
Are you looking for a reliable diving watch with a mechanical movement, excellent value for money and a proven reputation? Then the Citizen NY0040 is still one of the most interesting choices in the range. Looking for an alternative? Then be sure to take a look at our Citizen Promaster Marine watches.
Would you like to read more after this article on the Citizen NY0040? Then take a look at our other articles on the WatchXL watch news blog. There you’ll find, among other things, an overview of the 5 best Citizen diving watches for summer, the sea and adventure, an explanation of luminous hands on watches and more background on Citizen Eco-Drive and Super Titanium. This will help you quickly discover which Citizen Promaster, diver or sporty men's watch best suits your needs.
