Description:
Manufacturer Part Number 1590.51
Self-winding chronometer movement (automatic)
Dial Color: Black
Case: Silver
Bezel: Silver
Belt: Silver
Stainless steel material, sapphire glass
100m water resistant waterproof
Face diameter approximately the size horizontal 31mm (excluding crown)
Thickness of about 11mm, weighs 100g,
About 16mm ~ approx 20mm wide belt
Arms around about 10cm ~ Approx 18cm
Koakusharu specifications, Calendar (Date), the skeleton back