Ocean Crawler Core Diver - Refractor 2025 — 44mm Automatic Dive Watch
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The watch
The Ocean Crawler Core Diver - Refractor 2025 is a 44mm dive watch with a refractor dial, powered by a Swiss automatic Sellita SW200-1 movement. Highlights include 600m water resistance and a sapphire crystal. It belongs to Hour IV, Dive, in our Expedition season: a natural choice for water sports and everyday wear.
The Refractor dial sets the tone, framed by a sapphire unidirectional rotating bezel and set into a 44mm case in 316L stainless steel. At 44mm across, 15.6mm thick and 50mm lug-to-lug, it wears with real presence on the wrist.
Inside beats a Swiss-made Sellita SW200-1 automatic, running at 28,800 vph with roughly a 40-hour power reserve. It winds itself from the motion of your wrist — no battery, just a mechanical heart that has been individually regulated for accuracy.
Every Ocean Crawler is pressure-tested in water, and this one is rated to 600 metres (60 ATM). That is genuine capability for recreational and technical scuba diving, freediving and spearfishing. A helium escape valve lets it handle saturation diving and decompression chambers. The unidirectional bezel and bright Super-LumiNova keep elapsed-time tracking clear even in dark water.
It is made for divers and enthusiasts who want a serious tool watch with genuine depth rating, Swiss-grade mechanics and a design that still turns heads above the surface.
New, boxed and warrantied — free US shipping.
Good to know
A Swiss-made Sellita SW200-1 automatic running at 28,800 vibrations per hour with about a 40-hour power reserve. It is self-winding, so there is no battery to replace.
It is rated to 600 metres (60 ATM) and pressure-tested, so it is suitable for recreational and technical scuba diving, freediving and spearfishing. Have the gaskets checked periodically to keep that rating.
The case measures 44mm (15.6mm thick, 22mm lug width) — a bold size that suits larger wrists (roughly 17.5 cm / 6.9 in and up). Our watch size guide (/pages/watch-size-guide) explains how to measure your wrist.
It has a refractor dial, framed by a sapphire unidirectional rotating bezel, under an anti-reflective sapphire crystal.
It pairs 600 metres (60 ATM) of tested water resistance with a full sapphire bezel and sapphire crystal, a serious tool-watch build and Swiss Super-LumiNova, so it performs underwater and still looks refined on land.
The bezel and key dial markers carry Swiss Super-LumiNova, so elapsed-time tracking and reading the time stay clear in dark or murky water.
Yes. Other versions we carry include the Ocean Crawler Core Diver - Spring Time - Full Lume Orange, the Ocean Crawler Core Diver - Eclipse Carbon, the Ocean Crawler Core Diver - Whitewater Sentinel, the Ocean Crawler Core Diver - Rubellite Edition, the Ocean Crawler Core Diver - Blue/Orange DLC. Availability changes with stock, so the collection page always shows what is in stock today.
On the ChronoSeasons dial it sits at Hour IV — Dive, part of the Expedition season, and suits swimming, sailing, beach travel and everyday wear.
From the journal
Owners say
Spent Labor Day weekend out on the boat at Lake Havasu with this strapped to my 7.75-inch wrist. Between the 600m rating, heavy shark-mesh bracelet, and bright C3 Super-LumiNova, it is a seriously capable water watch.
Bought this for my brother who stood as best man at my wedding in August. He wanted a serious automatic diver and the Refractor dial blew him away when he opened the box at the rehearsal dinner.
Did two reef dives off Oahu with the Refractor 2025 on the included rubber strap. Visibility through the 4mm anti-reflective sapphire is crystal clear at 70 feet, and the lumed sapphire bezel makes tracking bottom time simple.
Checked the specs and tolerances right out of the box. The 120-click sapphire bezel lines up dead center at 12 o'clock, the helium escape valve sits flush, and the crown threads engage without any wobble. High contrast hands make it easy to read.
I am around bilges, docks, and salt water every day. This Core Diver handles it all without babying. The 600m water resistance and 4mm sapphire crystal shrug off knocks, and the shark-mesh bracelet rinses clean in seconds.
Been wearing this on my lobster boat and swimming up in Maine all month. Even on my wrist, the curved lugs on the 44mm case keep it secure. The screw-down crown feels bombproof and the C3 lume is bright in the cabin.
The website photos don't do the Refractor texture justice once you get it under real sunlight. I wear it to the office and out on weekends, and I've already had three people ask what brand it is.
Everything on my Refractor 2025 lines up properly. The 44mm by 15.6mm case has clean brushing, the 4.0mm AR sapphire crystal is distortion-free, and the 120-click sapphire bezel locks into each detent with zero play. Sellita movement is keeping +3 seconds a day.
I take this out sailing from Marina del Rey and swimming off Catalina. The 600m rating, screw-down crown, and C3 Super-LumiNova bezel make it a proper ocean watch, and the rubber strap is comfortable in the water. The watch has some real heft to it that took a couple days to get used to.
Hi Juan, sounds like the Refractor is right at home out by Catalina! That 600m stainless steel case definitely has some presence at first.
Refractor dial catches light like crazy. Bracelet resizing took 15-20 minutes with stubborn pins.
Hi Roy, glad you're enjoying the Refractor dial! Those heavy-duty shark-mesh screw pins can definitely be a little stubborn during the first sizing.
