Bohen Mille Mer

Shortly before last summer, I shared with you my feelings about the first prototype of the Bohen Mille Mer. I was then feeling both excitement and admiration: excitement because I was finally discovering, in a concrete way, the product of this project that I was able to follow with a privileged eye since its beginnings, and admiration because even if it was only a prototype, it already reflected the passion and know-how of its creator, and was already an exceptional piece to be. I have in my hand (well, on my wrist ;-p) the final prototype for a few days, and I would like to share with you a little more detailed opinion.

The specs

  • 316L Stainless Steel watch case in aerospace grade.
  • Anamagnetic ( antimagnetic cage + antimagnetic movement + non-magnetic stainless steel watch case).
  • Unique quality sapphire dome glass used in aerospace, with a double coating inside only.
  • Rotating bezel: 43 mm. Length: 50 mm. Height: 17.5 mm. band Width: 24 mm
  • Diving 100 ATM 1.000 m / 3,300 ft .
  • Helium exhaust valve.
  • Crown at 12 o’clock.
  • Ceramic rotating bezel, 60 clicks.
  • Case back in grade 5 titanium .
  • Unique in the world : an internal date magnifier (patented design).
  • Stainless Steel bracelet with integrated universal link (no needed tools to change the watch band).
  • Increments clasp buckle.
  • Superluminova X1 phosphorescent markers (much intense compared to Superluminova and lasts 2X longer).
  • Beauty of hand finishes (Embossing and deep brushing).
  • Automatic Swiss movement designed by Soprod (M100) and modified for Bohen.
  • Hours, Minutes, Seconds, Date.
  • Accuracy +/- 4 seconds / day in 5 positions.
  • 42-hour power reserve.
  • Antimagnetic . Chronofiable A8®.
  • 28,800 alternations 4hz.
  • Rhodium coating.
  • Rotor in Côtes de Genève .
  • Pearl bridges .
  • 25 jewels.
  • Incabloc.
  • Glucydur balance wheel .

The case

This is not very common, and it’s of course what we immediately notice: the crown is located at 12 o’clock. It is wide enough to be easily handled, and fits inside the first link of the bracelet which thus ensures a protective role. The hexagonal case, made of 316L stainless steel, has an alternating polished or brushed finish. This brings out the aggressive character of its very marked lines towards the lugs, compensated by softer curves on the sides, which are polished.

The case is surmounted by a steel bezel with a ceramic insert. This one, as with any diving watch, rotates unidirectionally, here in 60 clicks. It has a numbering every 10 minutes and more marked indexes up to 20 minutes, the one at noon being luminescent.

The glass is a sapphire crystal dome, treated with a double anti-reflective layer on its inner side. The feeling is quite exceptional and goes clearly in the direction of the announced quality, the legibility being great regardless of the angle of the light source, which is not always the case with dome lenses. We can add that this one has bluish reflections according to the angle of view.

The dial

The dial of the Mille Mer is a jewel! The indexes go up to the chapter ring, offering more space on the dial. They have been treated with Superluminova X1, and as you can see on the video, Bohen nailed it 🙂 The hands are quite wide (and benefit from a beautiful surface of Superluminova) for an effective legibility.

The detail that cannot be missed is obviously the internal date magnifier. It is absolutely unique, and while I usually tend to hate those magnifiers, I must say that this one is really well done. Its integration is perfect, and (it’s very personal) I find that it gives even more character to the Mille Mer.

The bracelet

Blaise often told me that he didn’t want to make an exceptional watch with a standard bracelet, because that’s all we would remember. So the bracelet is one of the last things he worked on, and I was very pleasantly surprised when I saw it in person. Even if once again it’s very personal, I find it beautiful! The central links and all internal facets are polished, while the outside is brushed. WOW! It’s 24mm wide on the lug side and tapers to 16mm on the buckle. This is a huge gap that gives it both an undeniable comfort and a visual lightness that compensates the important dimensions of the case.

This bracelet benefits from innovations that aren’t commonly found in that price range: a buckle with a tool-free fine adjustment system, and push-button quick-release springbars. These will allow to mount another bracelet on the first fixed links, as for the buckle, it offers the possibility to adjust the dimensions of the bracelet at any time and without tools.

On the wrist

The Mille Mer, despite its weight and size, is extremely comfortable to wear. I must say that (with only one exception) all my other watches, while on a steel bracelet, tended to move and rotate, provided that the bracelet was not very (or too) tight. This is not the case of the Mille Mer, whose balance has been carefully designed, so that it retains its position without ever becoming annoying.

Its thickness could be an obstacle to adjusted shirt sleeves, as far as I was concerned I did the test and did not encounter this concern, but maybe I was lucky. In any case, although being an extreme divewatch, the Mille Mer can be a jewel and will perfectly extend a costume or a more dressed outfit.


Considering that attention seems to have been paid to the slightest detail, that quality seems to be met from every point of view, and that the Mille Mer presents a unique and recognizable identity from afar, I consider that it can be described as an exceptional watch. It will not please everyone by its design, but I don’t think I’m going to go too far in saying that those who are seduced today without ever having worn it, they will love it the day they pass it on their wrist.

The Mille Mer is the first project of Bohen and its creator, Blaise Giuliani. It’s offered at a launching price of 1659€ (excl. VAT), which is quite incredible considering its specifications. For latecomers, the opening of sales to the public will be on 26/10.

See more on Bohen’s website

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2 Responses

  1. jean says:

    Cette montre Bohen a vraiment tout pour séduire. Sais-tu si une édition plus fine est prévue ? Peut être étanche uniquement à 300 mètres ?

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