Arnold & Son Longitude Titanium

Technical specifications


  • Hours
  • Minutes
  • Seconds
  • Power Reserve


  • Self Winding/Automatic
  • Chronometer (Cosc)
  • Swiss Made


  • Titanium
  • Brushed
  • 12.25mm
  • 42.50mm


  • Sapphire

Water resistance

  • 10.00atm / 100.00m / 330.00ft


  • Deployment Buckle
  • Titanium


  • Titanium


  • 2024

Official description

Arnold & Son, a benchmark in classic fine watchmaking, is exploring uncharted territory on the map of horology. Longitude Titanium is a sports-chic COSC-certified chronometer with a 42.5 mm titanium case. The dial of Longitude Titanium is vertical satin-finished in a continuation of the bracelet’s finish, which is subtly intersected by the polished edges of its links. With a power-reserve display at 12 o’clock and an imposing seconds counter at 6 o’clock, Longitude Titanium pays tribute to John Arnold’s marine chronometers, his revolutionary vision and his decisive role in calculating longitude at sea.

The aesthetics and construction of John Arnold’s marine chronometers were necessarily classic and functional, and were adapted to the harsh conditions of the high seas. Longitude Titanium, a contemporary interpretation of the great English watchmaker’s work, coherently combines this naval heritage with a refined design and highly resistant materials. The movement’s ‘chronometer’ certification is an essential addition to this scene, with its historical ties to Arnold’s creations and his quest for accuracy.