Eight-day blue leather

  • 43 mm case
  • Blue calf leather strap
  • 30 meters water resistance

192-hour power reserve

The Eight-Day Royal Navy is equipped with a highly efficient twin barrel to store the lengthy power reserve, which is displayed on the dial at 12 o’clock, along with a date indication and a small seconds display at 6 o’clock. The latter feature echoes those on the marine chronometers made back in British watchmaking’s 18th century heyday, when timepieces played a crucial role in nautical navigation and Arnold & Son were the suppliers of choice to the British Royal Navy.

Technical Specifications


  • Hours
  • Minutes
  • Small seconds
  • Power reserve indicator
  • Date


  • 43 mm
  • Stainless steel


  • Blue guilloché


  • Hand-stitched blue, hand-aged calf leather

Water resistance

  • 30 meters


  • 1EDAS.U01A.D136S
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