YEMA Navygraf Marine Nationale GMT YNAV23MN

A new interpretation

The Navygraf Pearl CMM.20 presents itself as an enlightened reinterpretation of a classic diver design, combining historical codes with contemporary manufacture. The newly developed 39-mm case is deliberately slim and understated, with proportions chosen so that the watch exudes a subtle yet unmistakable presence on the wrist.

5 years warranty. 

The dial as an eye-catcher

The mother-of-pearl dial is not just a surface but the heart: its natural iridescence reveals fine silver, violet, and dark blue tones with every movement, making each piece a unique original. This vibrant depth gives the watch an almost poetic elegance that works just as well under formal attire as with casual wear.

Indices and Legibility

Applied, polished steel indices and finely crafted hour and minute hands set metallic accents without overpowering the delicacy of the dial; at the same time, the generous coating with Super-LumiNova Grade A ensures reliable readability even in darkness. Thus, the Navygraf combines aesthetic finesse with practical usability.

Bezel and Protection

The mother-of-pearl bezel adopts the organic texture of the dial and is protected by a resin coating as well as a double-domed sapphire crystal, which not only offers scratch resistance but also creates a special depth effect through its dome optics. Appearance and robustness go hand in hand here.

Case construction and proportions

The 39 mm case made of 316L stainless steel is under 10 mm high and shows brushed surfaces in contrast to polished chamfers; this fine finishing makes the case both elegant and technically present. With 46 mm lug-to-lug, the watch remains pleasantly wearable and ergonomically balanced.

Display Back and Manufacture Movement

The sapphire display back reveals the in-house micro-rotor caliber CMM.20, whose Côtes-de-Genève finishing catches the light in a fan shape. The ball-bearing rotor, the generous power reserve of 70 hours, and the precise fine adjustment document the manual expertise and make the movement the style-defining element of the watch.

Everyday Suitable Diver's Watch

Although the Navygraf Pearl looks very elegant, it remains a true diver: the unidirectional rotating bezel, the screw-down crown, and water resistance up to 20 bar ensure technical operational capability. Here it becomes clear that fine aesthetics and robust function do not have to be opposites.

Bracelet Options and Wearing Comfort

As companions, a slim 316L steel bracelet with micro-adjustment clasp and a tapered FKM rubber strap made of Viton® are available. Both variants combine durability with wearing comfort; the rubber strap also scores with breathability and retro look, which does justice to the sporty aspect of the Navygraf.

Limitation and Significance

As a numbered edition of only 200 The Pearl CMM.20 is aimed at connoisseurs and collectors who value technical substance and at the same time a distinguished design. The individual serial number on the case back emphasizes the exclusive character of each watch.

Conclusion — Understated Luxury

The Navygraf Pearl CMM.20 achieves the rare balance between subtle luxury effect and genuine mechanics: a mother-of-pearl speckled dial, finely crafted steel appliqués, and a visible manufacture movement together form a watch that convinces both with a tuxedo and for diving use — a coherent package of craftsmanship, aesthetics, and function.

• CALIBER
• Micro-rotor caliber Manufacture
  Morteau 20
  Automatic with ball bearing rotor | 70 h power reserve | 28,800 A/h | Hours, minutes, seconds | Daily rate -3 / +7 seconds per day
• BEZEL
• Unidirectional rotating mother-of-pearl dive bezel with resin coating
• White minute markers. Triangular marker at 12 o'clock in Super-LumiNova BGW9 Grade A
• CASE & GLASS
• Material: Vertically brushed 316L stainless steel with polished chamfers
  Diameter: 39 mm
  Height: 9.75 mm
  Lug width: 19 mm
• Double-domed sapphire crystal
• DIAL & HANDS
• Mother-of-pearl dial
• Applied hour markers and stainless steel hands
• Hour markers and hands treated with Super-LumiNova BGW9 Grade A
• STRAP
• Diver's bracelet made of 316L stainless steel with micro-adjustment clasp
• FKM strap
• CROWN
• Screw-down polished crown with embossed YEMA logo
• WATER RESISTANCE
• 20 BAR / 660 ft / 200 m