Case Material Stainless Steel with Rose Gold Plating Strap Material Stainless steel Case Size 44mm Water Resistant 10bar Glass Material Sapphire Glass Clasp Type Fold Over Clasp with Push Button Movement Eco-Drive Power Reserve 5 months Specification 1/1 second units chronograph 60 minute timing 24 hrs display Date display Eco-Drive ( recharged by any light source , No need to change battery) Insufficient Charge Warning Function Overcharge Prevention Function