Blue Bezel 316L Stainless Steel Men's Watch Navygraf Marine Nationale CMM.10 21.14.55.SN

The Watch

Yema is a watchmaking brand founded in 1948 by Henry Louis in Besançon. Known for producing perfectly water-resistant timepieces, it quickly won over watch enthusiasts worldwide. The brand crafts diving models and robust chronographs powered by cutting-edge movements, delivering outstanding reliability. Built from solid materials and technically refined, each piece performs flawlessly in any situation. Yema offers a wide range of designs, from sophisticated to sporty - all dependable. True to its heritage, Yema blends innovation and artisanal expertise to bring you the Navygraf Marine Nationale CMM.10 Blue Bezel Watch - a dream piece for men passionate about diving. Crafted in collaboration with the Marine Nationale, it stands out with its bold case in 316L stainless steel, brushed and polished, measuring 39 mm in diameter, 11 mm thick, with a lug-to-lug length of 46 mm. The dial is protected by a double-dome sapphire crystal 2.50 mm thick, ensuring excellent resistance to everyday shocks. It is framed by a unidirectional dive bezel featuring a blue sapphire insert with Arabic numerals at 15-minute intervals and geometric indices treated with Grade A Super-LumiNova BGW9 for optimal legibility. A grey crown, positioned at 3 o'clock, is screw-down and knurled for easy, secure adjustment. Embossed with the Marine Nationale anchor insignia, it provides a confident, comfortable grip. The watch is sealed by a screw-down caseback with a sapphire crystal exhibition window that lets you admire every detail of the movement's oscillations. It is engraved and ensures a water resistance of 30 ATM.

The Dial

Inspired by the Navygraf II from the 1970s, this dial features a matte blue dial that gives the model a clean, refined aesthetic. It echoes the colors of the Marine Nationale, with blue and white tones displayed across the face. At its center, three hands in faceted stainless steel ensure clear and accurate timekeeping. The slender matte yellow seconds hand tracks the passing seconds while the hour and minute hands indicate the hours and minutes. Together, they sweep across the minute track and the printed geometric hour indices, all coated with Grade A Super-LumiNova BGW9 - just like the white hands - for maximum legibility in the dark. At 6 o'clock, the place of manufacture, water resistance, and movement type are noted. Just below 12 o'clock, the brand signs the dial with its logo, name, and collection title.

The Movement

At the heart of this timepiece beats a CMM.10 automatic movement with a 28 mm diameter, developed in-house. Highly reliable, it oscillates at a frequency of 28,800 vph (4 Hz) with a chronometric precision of -3 / +5 seconds per day. It comprises 208 components, including a large mainspring barrel with a Nivaflex spring, a Glucydur balance wheel, and galvanic finishing. The movement resists magnetic fields thanks to its non-magnetic alloys and withstands shocks with its Incabloc double-cone shock absorbers. It features a bidirectional rotor with 27 jewels to minimize friction, delivering a power reserve of approximately 70 hours.

The Strap

Using the drop-down menu, you can choose between two straps. Both feature a lug width of 19 mm and will complement your everyday style.

The first strap, designed for diving, is crafted in 316L stainless steel for a look that effortlessly elevates any style. Its brushed and polished links bring a refined grey tone that pairs with any outfit. Sturdy and comfortable, it features a double-safety deployant clasp with an extension so you can put it on easily over a wetsuit.

The second Marine Nationale strap draws inspiration from the handmade straps crafted by French combat divers in the 1970s. Made from NATO fabric, it is flexible, lightweight, and comfortable - perfectly suited for demanding physical conditions. Its weave features a blue color running through a white stripe, lending the watch a clean, minimalist look. Easy to put on and adjust, it fastens with a Velcro closure embossed with the MNF logo.

Water Resistance

With a water resistance of 30 atmospheres, equivalent to 300 meters, all that's left for our watch specialists to do is wish you an amazing aquatic adventure. Fully waterproof, this model is ready for anything - shower, bath, swimming, freediving, or scuba diving. To maintain the timepiece's lasting water resistance, our watchmakers recommend keeping the pushers and crown untouched while submerged.