My experience is using these for watch batteries. All of the major brands seem to be of high quality. pick the latest date and cheapest price. I've never had a bad battery from Maxell, Sony ( Murata)or Renata. Beware listings for really cheap brands. They often say they are silver oxide but turn out to be alkaline (inferior and short lived). Forget the listing, watch (pun intended) the actual package picture and fine print. The silver oxide are the ones to buy They are more expensive than alkaline but unless you enjoy changing your watch battery ( most common use) yourself if you have the tools and skill then stick with silver oxide. I have found that Maxell seem to be slightly cheaper and Renata the most expensive, but your shopping experience may vary. I have found no difference in quality. These things do seem to last longer than the package date but do expire eventually. Read full review
Verified purchase: Yes | Condition: New
A five-pack of batteries for half the price of having one installed? That's a pretty much unbeatable deal—provided you know how to safely open the back of your watch. That said, I still don't understand why they're identified as 'Sony' when the only brand name that appears on the packaging is Murata.
Verified purchase: Yes | Condition: New
This is old Sony brand batteries. Very pleased with its quality and price. Hope more consumers will become more familiar with this formerly known as “Sony”brand.
Verified purchase: Yes | Condition: New
As I have had these batteries in just 1 month it is not easy to say it is excellent, but Sony is a great brand in general and worth using in your watches or another small electronic units. I am sure the battery will last for at least 1 year, typical 2 years, and in some cases longer. For this price I can accept changing batteries every 2nd year. :-)
Verified purchase: No
Best Battery ever. Worked perfectly in my watch and it is keeping great time. It comes in a wonderful silver color, very attractive. I'd certainly buy again but since I bought 5 and each is good for about a year, it will take some time before i need them.
Verified purchase: Yes | Condition: New
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