BrandCITIZEN PROMASTER / Mechanical Diver 200m ModelNB6004-08E Launch Price(projected)USD 1,050.00 CaseSuper Titanium™ Duratect MRK (Bezel: TIC・DLC） BandUrethane (with replacement extender strap: Urethane / Black) GlassSpherical sapphire glass with anti-reflective coating Case diameter / thickness46.0mm / 15.3mm（ design specification only ） SpecificationsCal.9051 Mechanical/ Automatic & Manual winding / Accuracy of average -10～+20sec/day */ Running time of approx. 42 hours (when fully wound)/ Frequency : 28,800 vph / 24 jewels / 200m water resistance *Accuracy measured when the movement is in a stationary position. Due to the characteristics of mechanical watches, daily accuracy may be outside stated figures due to variations in conditions of use (including length of time worn, the position of the watch, wrist movement, and the winding of the spring.) ※1 Super Titanium™ is CITIZEN’s proprietary surface hardening technology to treat solid titanium. It is at least 5 times harder than stainless steel, resistant to scratches, lightweight and gentle to the skin for comfortable wearing. ※2 ISO: International Organization for Standardization. “ISO 6425 diver’s watch” for all diver’s watches to ensure diver safety. ※3 Duratect is CITIZEN’s proprietary surface hardening technology that enhances the surface hardness of metals such as stainless steel and titanium, protecting watch bodies from scratches and damage. This technology offers excellent abrasion quality and maintains the luster of metals for long periods of time. Duratect DLC achieves Vickers hardness of 1,000-1,400 by creating an amorphous carbon hard film—mainly composed of carbon and hydrogen—on the surface of the material. Duratect MRK and Duratect MRK Gold achieves Vickers hardness of 1,300-1,500 Hv by instilling gas onto the surfaces of titanium materials to harden.