pulsar y739-5019 battery size HELP NEEDED

hello whats the best kind of battery and the right size for this watch the pulsar calculator lcd .
i have a brand new pulsar y739-5019 the backs never been off . just want to have the right size battery before taking back off

THANKS AGAIN FOR YOUR HELP .

[edcarbonell]

I would also like to know which baterry the pulsar y739 uses

[dutchsiberia]

Manual says sr1130w. (Two seconds looking with google)

http://www.digital-watch.com/DWL/1work/ ... y739-5019/