Superman Slim CMM.20 Blue 39mm

Created by Henry Louis Belmont, a graduate from the National Watchmaking School of Besancon, YEMA was founded in 1948 and has been producing fine quality watches since. Along with some household names in the field of watchmaking, YEMA has concentrated on producing mostly emblematic and mechanical timepieces, including sports divers for pilots, racing drivers and underwater divers. Its repertoire includes reviving the YEMA Superman, commonly touted as France's legendary dive watch.

Introduced in 1963, the Superman took the dive watch community by storm with its outstanding 300m water-resistance and idiosyncratic bezel-lock device. Today, we introduce the revamped and upgraded YEMA Superman 2.0 CMM 39mm as the latest testament to YEMA's innovative watchmaking. "CMM" which stands for Calibre Manufacture Morteau, meaning the movement is developed in-house by YEMA themselves.

Yema Slim CMM.20 Blue 39mm

Watch enthusiasts can rejoice that the design of the YEMA Superman 2.0 CMM 39mm adheres to the trademark shape of the Superman. The thin, extended "skin diver" shape, crown and locking device, sapphire bezel and elevated crystal have all remained in this latest rendition of the Superman. The pointy lugs with holes, as well as sharp crown guards, have too been preserved to contribute to the retro vibes of this timepiece.

Where it sets itself apart from previous models is the dimensions. Measuring a diameter of 39mm, an incredible 9.95mm thin and as well as lug width of 20mm. This timepiece with a blue lacquered enamel dial, creamed printed markers and polished stainless-steel hands and bevel enjoys beefed-up specifications and diving capacities. Firstly, the date complication removal offers an elegant and seamless dial design with symmetrical elements while enhancing readability. The new double domed sapphire crystal also provides better readability amid a more resolute resistance as well as a sturdy retro appearance. Next, this timepiece sees an sapphire crystal case back to give a 300mm water resistance.

Moreover, YEMA's historic crest, decorated with a hydraulic press, now flaunts a more precise finishing as it was treated by various microblasting processes. Also thoroughly revamped is the winding crown's architecture. The modified crown tube and the winding stem offers a smoother operation of several pull-out crown positions and rotating directions when altering the caliber functions. Enjoy the feeling of stability and quality when you set the time of this Superman or wind this watch for pleasure purposes.

New Enamel Lacquered Dials Manufacture Française

Precise dive times are enabled by bezel rotation on the water surface prior to a scuba diving descent. The bezel-lock that remains securely in position, the patented design of the Superman's centerpiece and the crown tube have been refurbished, thus guaranteeing a more seamless operation.

New micro drilling in key areas of the case right under the bezel permits an optimized rotation of the bezel click spring and a more accurate alignment of the bezel insert. Super-LumiNova Grade A generously coats the markers, hands and bezel for better readability. The bezel's luminescent marker at 12 o'clock and the luminescent arrow-shaped minute hand give precise indications of dive times in poor visibility conditions at the greatest depths.

After 2 years of optimisation, Yema has finally debuted the new In-House micro-rotor Caliber CMM.20 which is featured on this watch. It features self-winding with ball bearings rotor while beating at a higher 28800 bph or 4 Hertz with a 70h power reserve. Thus, this timepiece provides an accuracy of -3/+ seconds per day. YEMA's In-house Caliber relies on a new movement hand design to provide better resistance to shocks and vibrations. The 316 L Stainless Steel bracelet with a secure lock is equipped with a divers extension for comfortable wearing over a diving suit.

Sapphire Bezel & Grade A Super-luminova

Not stopping there, the true ingenuity that allows for such a slim and high functioning watch is the state-of-the-art micro-rotor caliber that represents a significant evolution from the brand's previous reliance on Sellita/ETA movements or the YEMA2000 caliber. The CMM.20, developed with input from the renowned Olivier Mory and Patrick Augerau, is a testament to French horological craftsmanship, with its components produced either by YEMA in Morteau, France, or by local suppliers within a 72km radius. This movement features a tungsten micro-rotor on ball bearings, achieving a thinner profile which contributes to the watch's overall slimmed-down case design without compromising its dive watch capabilities.

A micro-rotor has to be fine-tuned and carefully crafted taking it's shape and aerodynamics into consideration in order for it to capture kinetic energy to power the watch. My minimising the space taken, the rotor is allowed to be moved back, remove a whole entire layer of the movement which makes it possible for a watch to be this slim. It cannot be said enough the ingenuity and the technology powering this horology piece.

Micro-Rotor Caliber CMM.20

The Superman comes paired with the classic Scales Slim bracelet made out of 316L stainless steel is a reissue of the iconic Yema Scales bracelet from the 1960s. It features a completely brushed finish for perfect harmony with the Superman Slim brushed case. The folding clasp adds style and comfort, and the "Yema" logo is embossed on the upper part. The bracelet clads an extension so that it can be easily and quickly adjusted over a diving suit.

Observers can note the parallel between this reissue and the original vintage model but with the new latest technology. This watch is a must get for enthusiasts everywhere to experience firsthand what a watch with a micro-rotor feels like and it's incredible dimensions.