Manufacturer Part Number H1757 Automatic Movement (automatic) Dial Color: Black & Diamonds Case: Black Bezel: Black Belt: Black High-tech ceramic materials, glass sapphire, diamond 200m water resistant waterproof Face diameter approximately the size horizontal 39mm (excluding crown) Thickness of about 11mm, weighs 150g, About 17mm ~ approx 19mm wide belt About arms around 13.5cm ~ Approximately 19.5cm Screw crown specifications, Calendar (Date), anti-reverse bezel More imformation , please visit *****