Watch brand: OUMASHI Auto race timing automatic mechanical watch
Movement model: 4130 automatic mechanical watch
Movement function: chronograph, calendar, luminous, timing, speed measurement, 24 hours system, etc
Case material: 316L stainless steel
Case technology: brushed + polished
Back cover material: sapphire glass back cover
Back cover type: screw in transparent sapphire glass back cover
Case diameter: 39.3mm (excluding crown)
Case length: 48mm (total length of top and bottom)
Case thickness: 14mm (including lens and caseback)
Case ear position: 20mm (where the case and strap are attached)
Watch length: 220mm (total watch length / circumference)
Strap material: stainless steel strap/rubber strap
Glass material: sapphire glass
Crown type: screw-in crown
Bezel material: Ceramic bezel
Bezel size: 39.3mm
Surface color: Four chronograph racing dials
Surface size:29mm
Water resistance level: 10ATM waterproof / diving [can wash hands, swimming, diving, to meet all daily waterproof requirements]
Exhaust valve: no
Packaging standards: professional waterproof plastic box packaging Avoid damaging the watch during transportation (send watch storage box)
