When French watchmaker Yema launched its ambitious “Manufacture Française” initiative, it signalled a major turning point for independent European horology.
By establishing in-house production capabilities in Morteau—just a stone’s throw from the Swiss border—Yema set out to reclaim France’s rich watchmaking heritage.
Standing at the apex of this renaissance is the Yema Superman Steel Blue CMM.10 Watch, a release that pairs the brand’s iconic 1967 professional diver architecture with a modern, high-performance manufacture calibre.
Priced at £1,616, this 39mm skin-diver merges authentic French movement manufacturing with high-grade components sourced within a 70km radius of Morteau.
* Case Geometry: 39.0mm Diameter × 11.30mm Thickness (47.0mm Lug-to-Lug)
* Movement Engine: In-House Manufacture Calibre CMM.10 Automatic (4Hz / 28,800 vph)
* Power Reserve: Expanded 70-Hour Power Reserve w/ Chronometric Precision
* Dial & Crystal: Steel-Blue Sunray Dial w/ 2.20mm Double-Domed Sapphire
* Water Resistance: 30 BAR / 300 Metres / 990 Feet
* Bracelet Build: Stainless Steel "Scales Slim" Bracelet in Brushed FinishNeo-Vintage Ergonomics & The Iconic Bezel Lock
The Superman case architecture remains one of the most recognisable silhouettes in dive watch history. Machined from 316L stainless steel, the 39mm chassis strikes an ideal balance between vintage skin-diver charm and modern wrist presence.
Measuring a slender 11.30mm in total thickness with a compact 47mm lug-to-lug span, its vertically brushed surfaces and hand-polished bevelled chamfers follow the natural curve of the wrist.
Framing the dial is a unidirectional diving bezel outfitted with a scratch-resistant polished black ceramic insert. At 3 o’clock sits Yema’s patented bezel-lock mechanism—a technical feature first introduced on the original 1967 Superman that clamps the bezel firmly in place whenever the screw-down crown is tightened.
Combined with a 2.20mm-thick double-domed sapphire crystal, the watch delivers a robust 30 BAR (300 metres) water resistance.
Steel-Blue Sunray Artistry & French Typography
The dial of the Superman Steel Blue is a captivating study in depth and light play. Its fine sunray finish shifts dynamically from a rich, dark navy in low light to a vivid electric blue under direct sunlight.
Polished applied hour markers rise above the dial bed, filled generously with Grade A Super-LumiNova BGW9 alongside the hands for long-lasting, cool-blue nocturnal legibility.
“By pairing its patented 1967 bezel-lock system with the Morteau-built CMM.10 manufacture calibre, Yema offers an authentic slice of French horological independence.”
A classic “lollipop” central seconds hand provides immediate visual confirmation that the automatic calibre is running, while French inscriptions across the lower dial bed culminate in the proud “MANUFACTURE FRANÇAISE” signature at 6 o’clock.
The Morteau-Built Manufacture CMM.10 Engine
Flipping the watch over reveals a sapphire display caseback—a rarity for a 300-metre professional diver—exposing the architecture of the CMM.10 (Calibre Manufacture Morteau 10).
Designed, assembled, calibrated, and checked entirely by Yema’s master watchmakers in Morteau, the 28,800 vph (4Hz) automatic engine delivers chronometric precision alongside a substantial 70-hour power reserve.
| Feature Specification | Horological & Technical Detail |
| Retail Price | £1,616 GBP |
| Movement Spec | In-House Calibre CMM.10 Automatic (28,800 vph) |
| Case Dimensions | 39mm Diameter × 11.30mm Depth (19mm Lug Width) |
| Luminescence | Grade A Swiss Super-LumiNova BGW9 |
| Bracelet Package | Stainless Steel “Scales Slim” Brushed Bracelet |
Complete with its vintage-style “Scales Slim” stainless steel bracelet and a five-year international warranty tied to a uniquely numbered caseback, the Yema Superman Steel Blue CMM.10 Watch (£1,616) represents a triumph for European independent watchmaking.
