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Oris Release Aquis Dat Watt Limited Edition II with Tungsten Bezel and Conservation Focus

Oris Aquis Dat Watt Limited Edition II

Oris are celebrating the extension of their partnership with the Common Wadden Sea Secretariat by launching their second limited edition watch promoting sustainability in the Wadden Sea area. Also known as Dat Watt, the Wadden Sea is a UNESCO World Heritage Site consisting of the world’s largest unbroken intertidal flats system, salt marshes and areas of conservation importance located along the north of Europe spanning from Denmark to the Netherlands. The wristwatch is the Oris Dat Watt Limited Edition II, a variant of the Aquis inspired by salt marshes.

At its core, this is a diving watch that’s designed for use by conservationists working in aquatic areas. As such there are certain adaptations that have been made compared to the standard Aquis that have more of a focus on practicality and tool watch utility. That’s why it has a 43.5mm diameter steel case giving it a large, readable display, which is important underwater. I should also mention the watch has a 300m water resistance rating.

Oris Aquis Dat Watt Limited Edition II
The Wadden Sea

However, perhaps more significant is the tungsten insert in the bezel. Tungsten is a metal that’s naturally much harder than steel making for a more scratch resistant and durable bezel, the area that typically takes the most dings during daily wear – especially during rigorous activities like sailing or diving. Tungsten is also not a material you ever really see in a watch, it’s incredibly dense making it comparatively heavy on the wrist. In some regards it performs a similar role as a titanium bezel without giving the Dat Watt Limited Edition II an overly lightweight or cheap feel on the wrist. It also happens to have a nice dark grey colour.

Oris Aquis Dat Watt Limited Edition II

Looking at the dial and the immediate first impression is that it looks very different from the majority of Aquises. It’s a date model, but instead of having a traditional date window at 6 o’clock it has an internal ring with a rotating indicator that circumnavigates the central hands. It means that there’s no interruption to the flow of hour markers, making the display more legible underwater. On top of that, there are only two central hands, hours and minutes, with the seconds having been displaced onto a running seconds counter at 9 o’clock. The purpose is to make it easy for the wearer to check that the watch is still operating in order to alert them to any potential timing issues quickly.

Oris Aquis Dat Watt Limited Edition II
Oris Aquis Dat Watt Limited Edition II

In terms of style, the dial is green in reference to the characteristic colour of the water in the Dat Watt salt marshes. Compared with the vibrant Aquises that have been released recently like the Hölstein Edition it’s a fairly muted colour. But again, it leans into the serious, utility-driven aesthetic nicely.

Oris Aquis Dat Watt Limited Edition II

It’s powered by the Oris 743 automatic movement with 38-hour power reserve. I’m sure that power reserve will tip off many of you that the 743 is base Sellita and indeed it is, Sellita SW 220-1 to be precise. I’ll once again bemoan the fact that it’s not the awesome in-house Calibre 400 but presumably the unusual date display and running seconds complications haven’t yet been made possible with that movement. On the plus side, the Oris Dat Watt Limited Edition II doesn’t carry the price premium the 400 brings and is a fairly reasonable £2,550 with 2009 pieces available (referencing the year the Wadden Sea became a UNESCO site).

Price & Specs:

  • Model: Oris Aquis Dat Watt Limited Edition II
  • Ref: 01 743 7734 4197
  • Case/dial: 43.5mm diameter, multi-piece stainless steel case, green dial with unidirectional rotating bezel and grey tungsten bezel insert, Super-LumiNova® hands and indices
  • Water resistance: 300m (30 bar)
  • Movement: Oris calibre 743 (base: Sellita SW-220-1), automatic, 28 jewels
  • Frequency: 28,800 vph (4 Hz)
  • Power reserve: 38h
  • Functions: Hours, minutes, small seconds, date
  • Strap: Multi-piece stainless steel bracelet with security folding clasp and clasp extension with additional blue rubber strap with security folding clasp, clasp extension and strap change tool
  • Price/availability: £2,550, limited edition of 2,009 pieces (same as the year the Wadden Sea was awarded World Heritage Site status), each watch is delivered in a special presentation box

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About the author

Michael Sonsino

As Digital Editor for Oracle Time, Michael needs an eye for detail, which makes it a good thing that his twin joys in life are miniatures and watches. He's a lifelong fan of fine timepieces, especially those of a more historic nature - if it has a twist of Art Deco, all the better. Recent purchase: Seiko Prospex 1959 Alpinist Modern Re-Interpretation. Grail watch: Vacheron Constantin Historiques American 1921.