AI disclosure: the images in this post are AI-generated renderings created from real reference photography of these watches. They are illustrative, not photographs of specific inventory.
Oris sells two very different dive watches under the same roof, and buyers mix them up constantly. Here is the actual difference, from a dealer who has sold both.
The short answer
The Aquis is Oris's modern dive tool: 300 meters of water resistance, a ceramic bezel, and a screw-down crown. The Divers Sixty-Five is the vintage-styled version, rated to 100 meters, built for looks and everyday wear more than depth. Both are available with the in-house Calibre 400 movement. Buy the Aquis if you actually dive or want a hard-use tool. Buy the Sixty-Five if you want a watch that looks like it survived the 1960s and works with a blazer.
Same brand, same in-house movement option, two completely different jobs.
Left: the Aquis, a modern 300 meter diver. Right: the Divers Sixty-Five, styled after Oris's 1965 original.
Oris Aquis: the modern tool
The Aquis is what most brands mean when they say "dive watch." It has a unidirectional ceramic bezel, a screw-down crown, and cases in 39.5mm, 41.5mm, and 43.5mm depending on configuration.
Specs that matter
Water resistance sits at 300 meters, well past recreational diving depth. The Aquis Date Calibre 400 runs the in-house movement: a five-day power reserve, strong anti-magnetic resistance, and a 10-year warranty and service interval. The Sellita-based version drops those numbers but costs less.
The ceramic bezel and screw-down crown are what make the Aquis a genuine tool, not just a diver-styled dress watch.
Who buys the Aquis
Divers, swimmers, and anyone who wants a watch that can take real abuse. It is also the pick if you want the most "serious" looking Oris on the wrist, with a busier dial and a bigger bezel presence.
The Aquis on the wrist, poolside. This is a watch built to get wet.
Oris Divers Sixty-Five: the vintage wearer
The Divers Sixty-Five is styled after the original Oris dive watch from 1965. Domed crystal, thin bezel, applied lume-colored markers. It reads smaller and dressier than the Aquis, even at similar case diameters.
Specs that matter
Water resistance is 100 meters, plenty for swimming and daily wear but not built for serious diving. It comes in 36mm, 38mm, and 40mm cases, smaller across the board than the Aquis lineup. The Calibre 400 version brings the same five-day reserve and 10-year warranty as the Aquis Calibre 400.
The domed crystal and lume-colored markers are the Sixty-Five's signature. It photographs like a vintage find.
Who buys the Sixty-Five
Buyers who want one watch to wear from the office to the weekend. It slides under a cuff more easily than the Aquis and works with a leather strap for a dressier look without losing the dive-watch DNA.
Casual, vintage-leaning, and versatile enough for a denim sleeve or a blazer cuff.
Side-by-side comparison
| Aquis Date | Divers Sixty-Five | |
|---|---|---|
| Case sizes | 39.5mm, 41.5mm, 43.5mm | 36mm, 38mm, 40mm |
| Water resistance | 300m | 100m |
| Bezel | Ceramic, modern | Aluminum, vintage-style |
| Crystal | Flat sapphire | Domed sapphire |
| Sellita price | Roughly $2,000 to $2,600 | Roughly $2,000 to $2,400 |
| Calibre 400 price | Roughly $3,300 to $3,700 | Roughly $3,500 to $3,700 |
| Best for | Divers, tool-watch buyers | Everyday wear, vintage look |
Pricing reflects current retail ranges by dial and strap configuration. For a deeper breakdown of the Calibre 400 movement itself, see our full read on Oris value.
The honest flaws
Neither watch is perfect, and a dealer should say so.
- The Aquis bezel action can feel notchy on early Calibre 400 examples. Give it a spin before buying pre-owned.
- The Sixty-Five's domed crystal catches more glare than a flat sapphire crystal, which some buyers find distracting outdoors.
- Both lines run slightly large on paper but wear smaller thanks to short lug-to-lug measurements. Try one on before assuming your usual size.
FAQ
Is the Oris Aquis or Divers Sixty-Five better for diving?
The Aquis. It is rated to 300 meters with a ceramic bezel and screw-down crown built for real diving. The Divers Sixty-Five is rated to 100 meters and is better suited to swimming and daily wear.
Do the Aquis and Divers Sixty-Five use the same movement?
Both are available with the same Sellita-based entry movement or the in-house Oris Calibre 400 with a five-day power reserve and 10-year warranty.
Which Oris diver is more versatile for everyday wear?
The Divers Sixty-Five. Its smaller case sizes, thinner bezel, and vintage styling make it easier to dress up or down than the sportier Aquis.
Are the Aquis and Divers Sixty-Five the same price?
Roughly, yes. Both start around $2,000 on the Sellita-based movement and climb to the mid $3,000s on the Calibre 400, with small variations by dial and strap.
Which Oris dive watch holds value better?
Neither line is known for strong appreciation. Both depreciate modestly, which makes the pre-owned market the smarter entry point for either watch.
Browse pre-owned Oris at 5D Watches
Browse authenticated pre-owned Oris watches at 5dwatches.com.