Seiko#ad - Water resistant 200m 660ft: in general, suitable for professional marine activity and serious surface water sports, but not diving. Sapphire crystal and Inner Rotating Compass Ring. Automatic movement with 50-hour power reserve. Case diameter: 39. 5mm. Japanese-automatic Movement.
#adSeiko#ad - Magnetic resistance 4, 800 A/m. Second hand halt mechanism Hacking. Cal. Box-shaped Hardlex crystal. Power reserve: approximately 41 hours. 4r57 movement, 29 jewels, 600 vibrations per hour, 21, Made in Japan.
Seiko#ad - Rotating Compass Inner Ring. Cyclops lens, sapphire Crystal with Anti-Reflection Coating, Screw Down Crown. Cal. 6r35 movement, 24 Jewels, Made in Japan. Second hand Halt Mechanism Hacking. Power reserve: Approximately 70 hours.