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Luminox draws the FORCE BLUE rope in lume on a 44mm Pacific Diver

A conservation collaboration whose emblem is drawn in lume right across the dial, over tritium tubes Luminox rates for 25 years. US$795.

Hen & Mills Editorial · 4 min read · 26 August 2026

• Luminox has built a Pacific Diver with the conservation group FORCE BLUE, whose rope emblem is reproduced in Super-LumiNova as a ring inside the minute track.
• The 44mm steel case carries a CARBONOX rotating bezel and gas tubes in blue and yellow that Luminox rates for constant visibility across roughly 25 years.
• It is reference XS.3125.FB at US$795 on Luminox's own store, Swiss made, on a blue rubber strap supplied with an extender for wetsuit use.

There is a particular kind of dark that a dive watch has to work in, and it is not the dark of a bedroom at three in the morning. It is the green-black of water with most of the daylight filtered out of it, where anything on a dial that relies on having been charged up earlier in the day has already quietly given up. Luminox has built a whole business on that one problem, and its newest Pacific Diver takes the usual answer and does something with it I have not seen at this scale before, which is to draw a badge right around the dial in it.

A rope, drawn in lume

The organising idea sits on the dial rather than the back of the case. FORCE BLUE, the non-profit Luminox has worked with here, deploys former special operations divers on marine conservation work, and its emblem is a length of rope tied into a circle. Luminox has reproduced that rope as a ring of Super-LumiNova running just inside the minute track, so the motif reads as a texture in daylight and as a glowing loop after dark. It is a genuinely clever place to put a badge.

The blue is not the blue you are expecting

Photographs of blue dive watches are usually lying to you, and the ones that are not lying are usually of a blue so dark it may as well be black. This one sits closer to the colour of a swimming pool in the late afternoon, deep but still obviously blue, and Luminox has run the applied markers and the bezel numerals in a mustard yellow that stops the whole thing looking corporate. Yellow and blue is a risky pairing on a dial. It works here because the yellow is warm rather than fluorescent.

Two colours of tube, which is the unusual part

Luminox fits gas tubes rather than phosphor, and on this watch it has used two colours of them, blue and yellow, which it rates for constant visibility across roughly twenty-five years. Mixing tube colours is less common than it sounds, because each one is made in a fixed colour and using two means deciding in advance which parts of the dial you want to separate in the dark. The result is that this reads as a layout at night rather than as an even wall of light, and a diver checking elapsed time is looking for exactly that.

Forty-four millimetres, and who that actually suits

The case is 44mm across and 12mm tall, in 316L steel, with a screw-down crown between protective shoulders and a screw-in case back engraved with the FORCE BLUE mark. That combination is rated to 200 metres, which is well past anything a recreational diver will ever do to it. The whole thing weighs 105 grams, so it is lighter than the dimensions suggest, but 44mm is 44mm and this is not a watch for a small wrist. On a larger one it will look exactly right.

Steel case, carbon bezel

Luminox usually reaches for its CARBONOX compound when it wants to take weight out of a case, and here it has left the case in steel and used the carbon only for the rotating bezel. That is the reverse of what the brand's lightest watches do, and it gives this one a bit of heft on the wrist while keeping the part you handle most from picking up bright scars. There is a trade in it. Carbon does not soften with wear the way steel does, so this bezel will look either new or chipped, with less in between.

What the movement is, and what that means

Inside is a Ronda 515, a Swiss quartz, and Luminox quotes a 60-month battery. Five years matters more on a watch you might actually get wet than on one that lives at a desk, because every case opening is another chance for a gasket to be seated badly on the way back together. A movement you can leave alone for five years is a movement that keeps the case shut. That is not a romantic argument for quartz, but it is the correct one.

A strap that assumes you are wearing a wetsuit

The blue NBR rubber strap fits a 24mm lug width and, unusually, comes with an extender in the box so it will close over a suit. Most brands sell you that separately or not at all, and its absence is the small indignity that turns a dive watch into a desk diver. It is also the detail that tells you who Luminox thinks is buying this. Somebody who gets wet.

Luminox FORCE BLUE Pacific Diver pricing and availability

The watch is reference XS.3125.FB and Luminox lists it at US$795 on its own store, Swiss made, on the blue rubber strap with the wetsuit extender included. It has not reached the Australian store yet, where the rest of the Pacific Diver range already sits, so there is no local figure to quote.

Just under eight hundred US dollars buys a Swiss diver whose markers will still be lit in the 2040s, which is longer than most of us keep anything except a wedding ring. That the badge on it belongs to a group of ex-military divers putting coral back where it came from is a better use of dial space than another sponsor's wordmark, and unlike most collaborations of this kind, the emblem has been rebuilt in a material rather than printed on top of one. Whether the reefs notice is a larger question than a watch can answer.