From my understanding on Orient watches, those with the "Double Dolphins 200" signed caseback are ISO-rated divers watches. This watch is consistent with the following features I notice:
- Lume indices, hour, minute and second hands
- Unidirectional bezel with lume pip
- Screw in crown with crown guards
- Simple and clean dial layout enables easy reading
- Solid stainless steel bracelet with double locking clasp and divers' extension
I couldn't have ask for more at this price range!