YEMA Navygraf Marine Nationale GMT YNAV23MN

Origin and concept

The Navygraf Pearl CMM.20 is a refined reinterpretation of a classic diver design: deliberately slimmer and more elegant than its predecessors, it combines historical codes with modern manufacture. The design reflects the intention to create a watch that functions confidently underwater and also suits formal occasions — a watch for those who equally appreciate function and style.

Limited to 200 pieces.

Dial as a small work of art

The natural mother-of-pearl dial is the secret heart of this model: its delicate iridescence reveals silver, violet, and turquoise tones that show new nuances with every movement of the wrist. Because no disc is like another, each watch becomes an individual unique piece; the smooth surface gives the face depth and an almost painted elegance that drips light in fine waves.

Indices, hands, and readability

Applied, polished steel indices and finely crafted hour and minute hands form a clear contrast to the mother-of-pearl base — together with Super-LumiNova Grade A, this results in readability that impresses not only during the day but also remains clear at night. The reflections of the polished surfaces play with the dial and create appealing metallic accents depending on the viewing angle.

Case construction and proportions

The newly designed 39-mm case is deliberately slim (under 10 mm thick) and features satin-finished surfaces that transition into polished chamfers. This combination of linear finish and glossy edges creates a subtly elegant appearance; with a lug-to-lug measurement of around 46 mm, the watch sits comfortably and balanced on the wrist — present but never intrusive.

Bezel, glass, and protection

The mother-of-pearl bezel continues the visual language of the dial and was coated with a protective resin layer before a double-domed sapphire crystal covers the composition. This construction increases scratch resistance while creating a special optical depth: the dome of the glass enhances the perception of layers and makes the mother-of-pearl appear almost alive.

Manufacture movement and display back

Under the sapphire display back, the in-house micro-rotor caliber CMM.20 is presented, combining bridges decorated with Côtes-de-Genève, a ball-bearing rotor, and a generous power reserve of 70 hours. This manufacture movement is not only technically remarkable, it is also part of the aesthetic experience through the display back: here watchmaking art becomes visible and tangible.

Diving qualities and features

Despite its elegant appearance, the Navygraf Pearl remains a practical diver's watch: the unidirectional rotating bezel, screw-down crown, and water resistance up to 20 bar ensure the necessary reserves for serious use. The integration of Super-LumiNova on indices, hands, and bezel guarantees clear orientation in every situation — an uncompromising promise of quality and usability.

Bracelet options and wearing comfort

Available are a finely crafted 316L steel bracelet with micro-adjuster and a specially designed FKM rubber strap made of Viton® with a retro-inspired pattern and tapered cut. Both options are comfortable to wear; the metal bracelet combines elegance with robustness, the rubber strap offers ventilation and grip during wet activities — a versatility that makes the watch flexible.

Limitation and collector's value

As a numbered edition of only 200 pieces, the series emphasizes its exclusive character: each watch carries an individual engraving on the back and is delivered with a guaranteed five-year warranty. This combination of rare edition, visible manufacture, and careful craftsmanship increases both the emotional and collector's value of the model.

Conclusion: Understated Luxury

The Navygraf Pearl CMM.20 achieves the rare balance between subtle elegance and serious technology: a mother-of-pearl speckled dial, fine steel appliqués, a flat, masterfully constructed case, and a visible micro-rotor caliber together form a watch you want to wear both with a tuxedo and diving gear. Those looking for a watch that combines craftsmanship, design, and everyday practicality in high quality will find a very harmonious offer here.

• 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