Varta V394 watch battery 1.55 V 67 mAh VARTA-V394 | eBay
Amazon.com: Lot of (200) Count Pieces AG4 377 LR626 SR66 Coin Button Cell Battery Suitable for Watches, Clocks, Toys, Calculators, Remote Controls and More, Bulk - Not in Retail Packaging : Health & Household
AG4 Alkaline Button Cell CAMELION Batteries 1.5 V Set of 10: Amazon.de: Electronics & Photo
Camelion Alkaline AG10 1,5 V Knopfzelle: Amazon.de: Elektronik & Foto