Royal Navy Beobachtungsuhr Ref.6390B
- mechanical with automatic winding ETA calibre's 2824-2, Diameters 25,6 mm 25Rubies 28'800 half vibration per hour. Incabloc-shock-proof.
- hours, minutes , central seconds, date, second-stopped
- Self made steel-case with sappihre-glass Diameters 37mm, heigth 10mm with mineral-glass bottom. Waterproof until 50 meters.
- black, luminous numbers, with Tritium.
- Leather black upholstery with a Symbol.
- Stainless steel bracelet with polished expanding. Security locking system.