Is a tribute to the legendary Seiko Tuna watch and a direct competitor to the Steeldive SD1975 and. Movement model: original Seiko NH35A (made in Japan). Movement type: Automatic mechanical movement. Movement features: 3 pins/calendar, frequency 21600 times per hour (3Hz), stop-second device, two-way automatic winding, 24 stone, 41 hours of energy storage. Case material: 316L stainless steel.
Case ear position: 22.00mm. Weight: 200g (with 03L strap).
Luminous features: Swiss super luminous C3, BGW9, orange luminous. Features of the mirror: Synthetic sapphire. Crown type: Screw in screw lock crown.
Mirror size: 31.503.90mm. Bezel size: 38.0031.601.20mm. Surface size: 31.2030.0028.500.40mm. Pointer size: 8.0012.0012.00mm.