Movement:Japanese Made OS20 Quartz Movement Chronograph

Functions:Working & fully functioning Chronos;Minute and hour totalisators activated by push buttons;Stopwatch Feature Available Exactly like the Authentics;Seconds Hand Fu nctions at the 6 O' Clock Sub Dial

Crystal:sapphire glass to withstand scratches, formed of corundum

Bezel:Genuine ceramics

Bracelet:Genuine ceramics

Dimensions:3.3cm×3.3cm×0.8cm