Promaster series mechanical divers with a high level movement, sapphire crystal and titanium case. Super Titanium is a material that has passed the original titanium processing technology and surface hardening technology (Duratect). It is 40% lighter than stainless steel and has a surface hardness more than 5 times that of stainless steel.
Citizen NB6021-68L
Self-winding and hand-wound mechanical movement, stop second, caliber 9051
Power reserve about 40 hours, movement on 24 ruby stones, frequency 28800 ppm, accuracy according to the passport from -10 to +20 seconds per day
Titanium case and bracelet with Duratect coated
Sapphire glass with anti-reflective coating
Water resistant 200 meters
Anti-magnetic 16000 A/m
Dimensions: diameter 41 mm, thickness 12.3 mm, weight about 108 g. / adjustable strap size 146 - 200 mm / between temples 20 mm
Made in Japan for Japan (JDM)