Genuine Sony SR927SW 395 399 LR927 1.55V Silver Oxide Watch Battery 1.5v Japan
Other designations:395 399 AG7 SR927SW SR927W SR927 LR927 LR927W Weight (of one battery): 0.76g. Battery size: SR927SW. Type: Silver Oxide. on the underside of the 1st battery. I'll ensure you get one cut from the top card.