ORIENT STAR Classic Power Reserve Open Heart Automatic Collection SDA02002W (WZ0051DA)
Engineered for the connoisseur of aesthetic simplicity, the Power Reserve Series is assured through a power reserve indicator that indicates the watch's remaining power.
Mechanical Movement: ORIENT caliber 40R53 Made in Japan
Drive system: Self-winding movement with Hand winding mechanism
(Second hand halts mechanism)
22 jewels, 21600/hour vibrations, Power reserve indicator
Running time: More than 40 hours
Case: Stainless steel
Screw see-through caseback (crystal glass)
Band: Stainless steel bracelet
Water resistant: 100m
Size: 39mm / 42mm with crown
Thickness: 14.3mm
Glass: Sapphire crystal
Dial: White

One year International warranty

http://www.orient-watch.com/orientstar/
http://www.orient-watch.jp/feature/retrograde/