MY-H3-2AC Movement type: automatic mechanical movement (two-way automatic winding)Movement model: Japan NH35Movement functions: 3 hands/calendar, 21,600 times per hour (3Hz) frequency, stop-second device, two-way automatic winding, 24 stones, 41 hours of energy storage.Case material: 316L stainle steelCase proce: wire drawing + polishingBottom cover material: 316L stainle steelBottom cover type: screw-in solid bottom coverCase diameter: 41mm (excluding head)Case length: 48mm (total length from top to bottom)Shell thickne: 13mm (including lens and bottom cover)Case ear position: 20mm (the position where the case and the strap are connected)Watch weight: 153g (including steel strap)Watch length: 228mm (total watch length/circumference)Strap material: stainle steel / rubber strap / NATO nylonTable mirror material: SapphireGlaTable mirror type: eyegla SapphireGlaMirror mirror coating: anti-glare blue coatingMirror size: 30.5*2.5mm (diameter * thickne)Crown type: screw-in screw crownCrown size: 7.00mm (diameter)Bezel material: ceramicBaffle function: one-way rotationLuminous bezel: 240,000 / KG Swi BGW9 super luminous powder, blue lightFrame size: 37.98 * 30.60 * 2.00mm (outer diameter * inner diameter * thickne)Surface color: black/green/blueSurface luminescence: 240,000 / KG Swi BGW9 super luminous powder, green lightSurface size: 29.50 * 29.00 * 29.00 * 0.4mm (line hole * surface diameter * opening surface * thickne)Hand craft: polished and electroplated white steel C3 with green luminousDial Luminous: 240,000 / KG Swi C3 super bright powder, glowing greenHand size: 7*11*11 (hour hand * minute hand * second hand length)Waterproof rating: 200 meters waterproof/diving [can wash hands, swim, dive, meet all daily waterproof requirements]Exhaust valve: noneWarranty period: three years free warrantyPackaging standard: profeional waterproof plastic box packaging Original Japan Seiko NH35A automatic movement makes ADDIESDIVE more reliable. The unidirectional rotating bezel is neceary for High quality rotating ceramic bezel, simple but clear dial with 3D scale and super luminous hands, all of these design make this Anti-corrosion 316L stainle steel case in 41mm diameter and 13mm thickne use compact design to make this watch water resistance up to 200Meters. Curved surface systhetic sapphire gla with anti-reflective blue coating improves the transparency of the was dial. Time scale, hands and scale in bezel all use Switzerland BGW9 super luminous.