Back in June of 2019, I reviewed the Oceaneva Deep Marine Explorer 1000M Pro Diver watch, a Swiss automatic dive watch with amazing build quality and value. Oceaneva is now introducing a quartz GMT version of this watch. The case and bracelet of these two watches are the same (except for the clasp). As a classic homage, this watch is the deepest diving quartz GMT watch available on the market. Let’s check it out.

The cases of these watches are essentially identical. They are completely brushed 316L stainless steel, which eliminates smudging from watches that have polished case areas. A 9 o’clock helium relief valve is used as expected, even though it will likely never be needed. The watch is 42mm in diameter, 49.5mm lug to lug and 14.8mm thick with a 22mm lug width. This is not a petite dive watch, but you would not expect it to be with a 1250m water resistance rating. The slightly bolder, gear edged, signed 3 o’clock crown and the brushed and engraved screw down case back are exactly as one would expect on a watch of this type.

The case back is engraved specially for the GMT model watch. The bezel on this model is thick, brushed aluminum, with a fully lumed and engraved insert, rather than a ceramic insert. I have not seen an aluminum bezel insert quite like this before and I think it is a great high quality alternate choice to ceramic. The bezel turns in either direction, but not without a firm grip on it’s polished edge. Even though this is a GMT design, divers can still use the bezel by just lining up the triangle where it is needed.

The face and hands (except for the GMT hand) of these watches are identical except for minor differences needed in face wording. The GMT hand matches the color scheme of the watch and is well lumed and finished. The perfectly polished and lumed handset uses a proper lumed lollipop with classic counter balance design. A black polished face works flawlessly with raised indices with polished edges along with the expected 60 white, minute/second markers. Everything lines up very well in terms of the face, bezel, indices and hands. The black on white 3 o’clock date window avoids using a cyclops, a bonus in my opinion. All lume is BGW9 and really could not be expected to perform any better. The rehaut on the GMT uses a more discrete text with wording changed on the lower portion to indicate this watch is rated for 683 fathoms.

Bracelets on these watches are of the same classic fully brushed three link origin, except for different clasp designs. The quartz GMT watch offers four micro adjustments on the clasp which makes adjustments quicker and easier. The standard Deep Marine Explorer can only be adjusted with links and half links and a built in diver’s extension. The removable bracelet links on these watches are not screwed, but this is not really an issue once the bracelet is properly adjusted. I find bracelet fit to be excellent on my 7 inch wrist and the watch to be relatively well balanced and not top heavy. The smooth, brushed finish of the clasp with the engraved trident design is a stunning look, in my opinion. These watches use excellent milled, folding bracelet clasps and solid end links, as they should.

Powering the Oceaneva GMT is the Swiss Ronda 515.24H quartz movement. With an expected 45 month battery life, this movement should provide excellent service and accuracy well within it’s -10 to +20 seconds per month rating. The movement is very reasonable to replace if needed. The watch’s 1250M/125 Bar water resistance rating has been tested accordingly, which should really mean outstanding long term durability. As of this time these watches can be purchased in five different bezel color combinations, all with deep black faces. Currently at time of writing they are on sale for only $249. Final assembly and testing for this watch is done in the USA. I don’t believe there is a better value anywhere in a deep dive rated quartz GMT watch.