I got this watch for 5 days. It is great design. You can call it "new ecozilla "555.
It can start the meter for diving in 2 second after it touch with the water up to 70 m and it can alarm when you rise up fast more than 9m/secAttachment 1536458Attachment 1536456. And it has the power reserve and can go to the 350 day after fully charged. It comes with the soft rubber strap .... It is not the water rubber that feel more comfort.
*** now I don't know how to change the strap. I will try next time