Fluted-bezel elegance with true GADA manners- Monbrey Trinova Natural Onyx

Dress watches have evolved. A lot of people still love the classic idea, slim, elegant, on leather, but the reality is most of us want something we can wear far more often than a couple of formal events a year. That’s where the dressy GADA watch comes in, a piece that looks refined enough for smarter moments, yet has the comfort and durability to handle everyday life. When a watch nails that balance, it becomes the easiest “one-and-done” option in a collection.

The Trinova in Natural Onyx Stone is very much built around that modern brief. It’s a modern classic with a neo-vintage edge, and it adds a touch of quiet opulence without crossing into flashy territory. The deep black onyx dial is the headline, not just because it’s black, but because it’s natural stone. Onyx has a depth and a slightly different way of catching light compared to lacquer or paint, it reads richer, calmer, and more expensive. It gives the watch that jewellery-adjacent feel while still looking like a proper, wearable timepiece rather than a delicate accessory.

Then there’s the detail work, four triangular-cut DVS1 lab-grown diamonds set directly into the onyx. The geometry is key here. Instead of traditional round sparkle, you get sharp, modern points of light that suit the overall design language. They’re subtle enough that the watch still looks clean from a distance, but when you’re close up, or when light hits just right, they bring a really satisfying glint.

The fluted bezel is the other big element that ties the whole “modern classic” thing together. It’s not presented as a copy of anything, it’s clearly an original design with its own proportions and dial concept, but the fluted bezel does place it in the wider conversation of classic everyday elegance. It’s a familiar signifier in watch design, and it works here because it frames the onyx dial beautifully and adds that extra bit of light play on the wrist.

The result is a watch that feels smart, composed, and genuinely wearable, a dress watch that doesn’t mind being used like a daily.

The Specifications

Proportionally, the Trinova is exactly where you want a refined everyday watch to be. The case is 37.5mm in diameter with a 45mm lug-to-lug, which should suit smaller wrists brilliantly while still looking properly “adult” and intentional. Thickness is 8.5mm without the crystal and around 10mm overall, keeping it slim enough to feel dressy, yet substantial enough to feel like a modern daily rather than a fragile vintage piece. It’s built in 316L stainless steel and topped with sapphire crystal featuring anti-reflective and anti-fingerprint coatings, which is a genuinely nice real-world touch, less wiping, better clarity, more time just enjoying the dial.

The fluted bezel deserves mention because it changes the whole personality of the watch. It adds texture, rhythm, and sparkle to the case without needing extra colour or bulk. It’s one of those features that reads “classic” instantly, but here it’s used as part of a broader neo-vintage design rather than as a direct reference. It also pairs brilliantly with the onyx dial, polished metal and deep stone are a naturally luxurious combo.

And that dial really is the main event. Natural onyx brings an inky depth that’s hard to replicate with standard finishes. Depending on lighting, it can look like a perfectly black void or a softer, glossy black with a gentle sheen. That material-led look is why the Trinova feels like it’s punching above its £644 price, because stone dials tend to come with a more premium, jewellery-like presence almost by default.

The diamond markers are also executed in a way that feels intentional. You’re getting four triangular-cut DVS1 lab-grown diamonds, around 0.06 carat each set in an ''explorer'' layout with their pointed bases anchored into the stone and rhodium-plated for added brilliance. That’s a very “modern materials, modern technique” approach, and it matches the watch’s geometry-first style. It’s sparkle with restraint.

Power comes from the Miyota 9039 automatic calibre, a premium no-date movement that suits the clean dial. It’s a sensible choice for a daily wearer, reliable, widely supported, and helpful in keeping the case slim. The absence of a date also keeps the design symmetrical and calm, which matters on a dial as material-focused as onyx.

Finally, the spec that really seals the GADA argument, 10 ATM, 100 metres water resistance with screw down crown. For a watch with this much dress appeal, that’s a proper green light for everyday life, rain, handwashing, travel, and general “wear it and forget about it” confidence.

On the wrist

On my 6.25 inch wrist, the Trinova wears beautifully. The 37.5mm case and 45mm lug-to-lug are classic “fits nearly everyone” dimensions, but they’re especially flattering on smaller wrists because they look elegant rather than oversized. The watch should sit centred and balanced, with enough dial real estate to feel premium, but no awkward overhang.

The thickness is another big win. Around 10mm overall means it’ll slip under cuffs easily and sit close to the wrist, which is a huge part of why dressy watches feel comfortable. It also helps the watch feel more versatile, you can wear it with knitwear, shirts, jackets, and it won’t feel like it’s fighting your clothes.

This is where the onyx dial becomes addictive. On the wrist, it doesn’t just look “black”, it looks deep. You get that sense of polished stone, and it gives the watch a quiet richness that stands out precisely because it isn’t loud. In brighter light, the onyx has a subtle glow, in dimmer settings it turns moodier and more dramatic. It’s the kind of dial you catch yourself looking at for no reason.

The diamonds are similarly well judged. Because they’re triangular and used sparingly, they read as design markers first and jewellery second. Most of the time the watch looks clean and minimalist, then you move your wrist and get a quick flash of light from one of the stones. It’s a very controlled kind of “special”.

The fluted bezel contributes a lot to daily wear too. It adds visual interest and a touch of sparkle at the edge, which helps the watch feel dressy even if the rest of your outfit is casual. That’s a big part of why watches like the Datejust are so wearable in real life, they’re not dress watches in the strict sense, they’re elegant all-rounders. The Trinova is in that same usability conversation, not as a homage, but as another answer to the same problem, how do you make a watch feel refined enough for smart settings without limiting it to smart settings.

And the practical side supports that idea. Sapphire, a robust steel case, and 100m water resistance mean you can treat it like a daily. It’s not just “nice”, it’s usable, which is the whole point of a GADA.

Strap and bracelet

On the leather strap, the Trinova feels like a modern dress watch with a slightly jewel-like twist. The Monbrey x Monves collaboration strap is a big part of that. It’s Italian genuine leather with a semi-gloss black crocodile pattern, handmade by a Hong Kong-based leather atelier, and it gives the watch a more artisanal, considered feel than a generic stock strap. Tool-free quick release spring bars are also a genuine quality-of-life upgrade, it makes switching to another strap effortless.

If you want the Trinova to lean harder into the everyday, the optional M5 five-link flat jubilee bracelet, £164, is a very strong pairing. A flat jubilee style is one of the most comfortable bracelet formats because the smaller links drape and curve naturally, which is especially helpful on smaller wrists. This bracelet also comes with a shorter clasp, only 29mm long, plus a precise micro-adjustment system. That shorter clasp length is not just marketing, it’s one of the key things that stops a bracelet watch feeling bulky on the underside of the wrist.

Leather makes it feel elegant and slightly formal, the flat jubilee makes it feel like a proper daily classic you can wear anywhere.

Concluding thoughts

At £644, the Trinova Natural Onyx offers a genuinely unusual mix of ingredients. The core specs, sapphire, automatic movement, steel case, and 100m water resistance, are already strong for the money. But the onyx dial and the diamond-set markers take it somewhere most watches in this bracket simply don’t go. It feels like a watch with materials you’d normally expect to see at a higher price.

It also sits in the same usability conversation as the classic benchmark in the category, the Rolex Datejust. Not because it’s copying it, it clearly isn’t, but because both watches aim at the same destination, an elegant, do-it-all daily that can move between casual and smart without effort. The Datejust does that with a very established formula, brand presence, bracelet comfort, and instantly recognisable case and bezel cues. The Trinova, meanwhile, takes a more design-led route, leaning into neo-vintage restraint, geometric accents, and the richness of a natural stone dial. If the Datejust is the universal template, the Trinova is a more niche, material-forward take on the same idea of everyday elegance.

Compared to other dressy automatics around this price, the Trinova’s advantage is personality without fragility. Lots of watches can offer “clean black dial, steel case, automatic”, but far fewer bring real onyx and restrained diamond detailing while still offering 100m water resistance. That’s what turns it into a true GADA, you can wear it like a dress watch, but you don’t have to treat it like one.

Who is it for? someone who wants a refined watch that still works day-to-day, someone who likes classic design cues like a fluted bezel but wants an original, modern execution, and someone who appreciates materials and detail more than logos.

Taken as a whole, the Trinova feels cohesive, thoughtful, and quietly luxurious. It’s a strong statement for Monbrey’s design direction, and it makes a convincing case that modern classics can still feel genuinely fresh.

For more information please visit: https://monbrey.com/collections/mb3-series-trinova

Technical specifications

• Case, 316L stainless steel, fluted bezel

• Diameter, 37.5mm

• Lug-to-lug, 45mm

• Thickness, 8.5mm without crystal, 10mm with crystal

• Water resistance, 10 ATM, 100m, ISO 22810:2010

• Crystal, sapphire with anti-reflective and anti-fingerprint coatings

• Movement, Miyota cal. 9039 automatic, no-date

• Dial, natural onyx gemstone dial

• Markers, four DVS1 lab-grown triangle-cut diamonds, around 0.06ct each, rhodium-plated setting detail

• Strap, Monbrey x Monves collaboration strap, Italian leather, croc pattern, artisan-made in Hong Kong, tool-free quick release spring bars

• Strap sizing, 20mm to 16mm taper, fits wrists 14cm to 21cm

• Optional bracelet, M5 five-link flat jubilee bracelet, £164, 29mm clasp length, micro-adjustment, comfort-focused link design, compatible with MB3 series only