Model No.: SD1977T
Brand Name: STEELDIVE
Movement model: Japan NH35
Movement type: fully automatic mechanical movement
Movement features: 3 hands/date, frequency 21600 beats per hour (3Hz), second stop, bidirectional automatic Dynamic winding, 24 jewels, 41 hours of energy storage.
Case material: 316L stainless steel
Case diameter: 42.00mm (without head)
Case length: 47.80mm (total length up and down)
Case thickness: 13.45mm (including crystal and bottom cover)
Case lug: 20.00mm (connection between case and strap)
Head weight: 84g (without strap)
Whole watch weight: 107g (including rubber strap)
Luminous features: Swiss Super Luminous BGW9
Strap material: rubber
Bezel Material: Ceramic
Glass features: Synthetic sapphire
Bezel features: 120 teeth, counterclockwise unidirectional rotating chronograph
Back cover type: Screw-in Back Cover
Crown type: screw-in screw
Head size: 7.00mm (diameter)
Mirror size: 32.00*2.70mm (diameter*thickness)
Bezel size: 38.00*32.10*1.20mm (outer diameter*inner diameter*thickness)
Surface size: 33.00*31.00*29.30*0.40mm (wire hole * surface diameter * open surface * thickness)
Hand size: 7.50*12.00*12.00mm (hour hand*minute hand*second hand length)
Waterproof level: 200 meters waterproof / diving (can wash hands, swim, dive, meet all daily waterproofwater usage)
Warranty period: two years free warranty
Packaging standard: professional waterproof plastic box packaging