Product information: Movement type: automatic mechanical movement Movement: Japanese NH35A Movement features: 3 hands / calendar, 21,600 vibrations per hour (3Hz), stop-second mechanism, bi-directional automatic _ winding, 24 jewels, 41-hour energy reserve Case material: 316L stainless steel Case process: brushed + polished Back material: 316L stainless steel Caseback type: screw-down caseback Case diameter: 39mm (excluding crown) Case length: 48mm (. Total length of top and bottom) Case thickness: 14.5 mm (including mirror and caseback) Ear size: 20mm Watch length: 220mm (total watch length / circumference) Wrist range: 140-210mm Strap material: solid stainless steel Glass material: synthetic sapphire Mirror coating: anti-glare blue coating Crown type: screw-in crown Crown size: 6.5 mm (diameter) Surface color: 3D white, 3D blue Surface size: 30.8*32*32.5*0.4 Hands technology: hour and minute hand ridge back silver + IP blue seconds Pointer luminous: no Pointer size: 10*13.75*14 Waterproof level: 100m waterproof / diving [can wash hands. Swimming, diving, meet all daily waterproof use] Size Information: Packing list: Watch*1 Product Image:

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