Finally got my hands (well not really, not until this weekend) on the SRP461K1 Code Blue Monster. Basically it is the SRP455J1 but with a steel metal bracelet and is limited edition of 500 pieces. The watch retails for about USD450.
Looks the same as the SRP455.
Same movement, 4R36.
The case back, engraved with the limited edition run, xxx/500.
I will do a comparison test soon.... :)