★ 4.4
Renata 393 Watch Battery Review: Is This Swiss-Made Powerhouse Worth It?
The Renata 393 (SR754SW) is a Swiss-made silver oxide watch battery delivering 1.55V and 80mAh in a compact 7.9mm × 5.4mm form. I spent two weeks swapping these into everything from dress watches to a glucose meter to see if the Renata name actually means something on the bench.
haunh4 min read