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                                    [Choose #3] Watched a divemaster do it once, and I have been doing it ever since. |  | 
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                                    [Choose #2] My watch batteries can be replaced easily by any shop. My D9 must be returned to Suunto. |  | 
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                                    [Choose #1] D9 back to Suunto (first computer) / Shearwater Petrel - fix it myself (second computer) |  | 
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                                    [Choose #2] turns out my watch has a sealed back that requires a special tool and it unscrews |  | 
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                                    [Choose #3] Every two weeks thanks to the POS. |  | 
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                                    [Choose #2] Take it back to the Jeweler I bought it from and no its not a Casio. |  | 
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                                    [Choose #3] I can’t resist. |  | 
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                                    [Choose #2] I’ve had mine replaced a couple times. I just let the Local place do it.. Probably going to go for Eco-drive next time and not worry about it. |  | 
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                                    [Choose #3] Just make sure to inspect and lube up the oring. Use a good tool to open and close the battery compartment, one that wont break the watch and that allows you to use a good amount of torque when tightening. |  | 
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                                    [Choose #3] Depends on the manufacturer specs. Most current watches and comps come with a user replaceable battery but as with all my dive equipment, I read the instructions. |  | 
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                                    [Choose #1] My dive watch was no longer waterproof once the battery was replaced. Both computers and my camera tell time so no more dive watch. |  |