Yema x Silberstein Marine 2: Bold Design, In-House CMM.20

There are collaborations, and then there are true fusions of vision. When legendary French designer Alain Silberstein lends his name to a watch, you know it won't be a simple dial swap. The new Yema x Silberstein Marine 2 is exactly that: a wild, expressive piece of wearable art, powered by some of Yema's most serious in-house engineering.

Limited to just 150 pieces, this watch combines a Grade 5 titanium case, a French-made micro-rotor caliber, and a design language that pulls from Bauhaus modernism and maritime signal flags. It's a tool watch that forgot it was supposed to be serious, and that's precisely what makes it so compelling. Let's break down the specs.

The Heart: Yema's CMM.20 Micro-Rotor Caliber

The engine inside is Yema’s Calibre Manufacture Morteau 20, or CMM.20. This isn't just an off-the-shelf movement; it’s designed, assembled, and calibrated in Yema's own workshops in Morteau, France. This is a big deal for a brand at this price point. The first thing you’ll notice is the micro-rotor. Instead of a large, centrally mounted weight that covers half the movement, a smaller, offset rotor handles the winding. The main benefit? It allows for a much thinner movement, which in turn means a sleeker case.

Performance Under the Hood

This isn't just for show. The CMM.20 delivers a hefty 70-hour power reserve, meaning you can take it off Friday and it'll still be ticking on Monday. It beats at a modern 28,800 A/h (4Hz) for a smooth seconds sweep. Yema regulates these movements to an impressive -3/+7 seconds per day, which is comfortably within chronometer territory. It's the same movement platform we saw in the fantastic Under the Hood of the Yema Navygraf Barracuda CMM.20, proving Yema is serious about making this caliber a cornerstone of its collection.

A Uniquely Decorated Engine

The view through the sapphire caseback is anything but standard. Silberstein’s influence extends right to the movement architecture. The tungsten micro-rotor is finished in a vibrant red, and a yellow-gold anchor is metallized onto the glass. It transforms the caseback from a technical window into a deliberate part of the design narrative. This is a thoughtful touch that elevates the entire piece.

The Canvas: A Modern Titanium Case

The case is where the watch’s tool-watch credentials meet its avant-garde spirit. It’s crafted from Grade 5 titanium, which is significantly lighter and stronger than steel. A black DLC (Diamond-Like Carbon) coating gives it a stealthy, scratch-resistant shell. Yema didn't stop there. The entire case has a microblasted finish, giving it a soft, matte texture that absorbs light rather than reflecting it. This makes the vibrant dial pop even more.

Functional Symmetry

The watch features a dual-crown layout, a classic "super compressor style". The lower crown handles time-setting and winding, while the upper crown, finished in a cool blue Cerakote®, operates the internal bi-directional bezel. Both crowns screw down, helping the watch achieve its solid 200-meter water resistance rating. This is a legitimate diver, not just a design piece that looks like one.

The Art: A Dial by Alain Silberstein

Let's be honest, the dial is the main event. Silberstein is a master of color and form, and he’s composed a scene here that's pure, unadulterated fun. The base is a deep blue with a grained texture that evokes the sea floor. The hands are the stars. The hour hand is a bold, geometric red shape like a buoy. The minute hand is a simple blue arrow, and the seconds hand is a bright yellow anchor. It’s playful, legible, and completely unique.

Coded Communication

Instead of traditional numerals, the cardinal hour markers at 12, 3, 6, and 9 use international maritime signal flags to spell out Y-E-M-A. It’s a clever, thematic detail that reinforces the watch's naval identity. The rest of the markers are applied, three-dimensional blocks filled with Super-LumiNova. Yema specifies that the markers and flag appliqués are 0.8mm tall, giving the dial a fantastic sense of depth and structure.

Light and Shadow

That 3D construction pays dividends after dark. The hands are shaped to hold as much lume as possible, and the tall markers glow with an impressive intensity. It’s not just a flat application; the light comes from sculptural forms. The lume itself is top-tier Super-LumiNova Grade X1. It ensures the watch’s graphic identity and legibility are preserved long after the sun goes down.

View on Brand

Final Thoughts

The Yema x Silberstein Marine 2 CMM.20 is a statement piece with the specs to back it up. It successfully blends high-level watchmaking from Yema with the singular artistic vision of Alain Silberstein. It’s a reminder that tool watches can be objects of joy and creativity. For the right collector, this isn't just a watch; it's a piece of kinetic art for the wrist. And with only 150 being made, it’s an exclusive one at that.

Reference	20.26.20.05.TN.U6
Case	40mm x 11mm, Black DLC Grade 5 Titanium with microblasted finish
Movement	Yema CMM.20 Manufacture Caliber
Power Reserve	70 hours
Winding	Automatic with Tungsten micro-rotor
Frequency	28,800 A/h (4 Hz)
Accuracy	-3/+7 seconds per day
Crystal	2.20mm double domed sapphire crystal
Water Resistance	200m / 20 BAR / 660 feet
Strap	Two FKM rubber straps (black and red) with Grade 5 titanium deployant clasp
Lug Width	20mm
Price	$4,425.00 USD