Case &Crown Brushed/polished stainless steel
Caseback Stainless steel fixed with screws 
Glass Sapphire crystal with antireflective coating inside
Strap & Buckle
High quality black geniue leather
Functions Hour, Minute, Second, Day and Date
Diameter 40.13 mm
Water Resistance 3 ATM (30 metres/100 feets)
Movement Japanese Quartz - TMI
CHAIROS® Racing Octane Watch