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FORTIS Marinemaster M-40 - Gravity Black

Regular price $5,450.00

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Strap style


Marinemaster - Breathtaking since 1954

Inspired by nature. A true outdoor companion. Marinemaster. Redefined.

One of the oldest diving watches in the world. Developed in 1954 – an integral part for the past 70 years.

The Marinemaster M-40 is equipped with the UW performance caliber with a power reserve of 38 hours. The recycled steel case can dive to a depth of 300m and is the perfect companion for all your adventures. 


  • Diameter: 40mm
  • Thickness: 12mm
  • Lug to Lug: 43mm
  • Caseback Finish: stainless steel with ultra engraving
  • Recycled stainless steel
  • Screw down crown with triple gasket system
  • unidirectional gear bezel 

Dial & Hands

  • Lacquered dial with Fortis o-pattern and applied superluminova® X1 indices
  • Metallic hour and minute hands with superluminova® X1


  • UW performance calibre
  • Anti magnetic, gilt Glucydur balance wheel
  • 28.800 vibrations per hour (4 Hz)
  • 38hr power reserve 
  • Date function


  • Stainless steel block bracelet

Water Resistance

  • 30atm/300m


  • 5 Year


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