10pcs/set for Renata 364 SR621SW 377 SR626SW 371 SR920SW 315 SR716SW 321 SR616SW 317 SR516SW 394 SR936SW 362 SR721SW379 395

We offer free battery verification service throughout our store. As long as you take photos of the front and back of the battery and send them to us via message. Dear customer, hello. First of all,Installing a wrong part number of battery will harm your watch.So if you are unable to determine the model of your watch battery, please take a clear picture of the front and back of the battery and send it to us by messages. Our engineer will help you confirm the correct part number. We are unable to identify the corresponding battery model when taking photos or sending the watch model. Please understand. Wishing you a pleasant shopping experience. Thank you very much for your purchase. A brand new photodynamic battery should be properly installed inside the watch and exposed to sunlight for seven to eight hours to charge and activate. If it is confirmed that the installation is correct, but still cannot be charged, it is recommended to find a professional technician to check the negative electrode of the watch and whether the battery storage function of the watch movement is damaged. Our products are tested by engineers before shipment for customers' right. . We have watch batteries manufacturer ordering resources.Promise lowest price, best quality. There are thousands of integrated circuit products that we haven't put on the shelves, so if you need a product that can't be found in our store, please send a private message to the customer service personnel, and the customer service personnel will reply to you 24 hours online. Over 20 years experience,exports exceed 20 countries,only original stock is sold, this is how we keep good quality and competitive prices for global valued customers. If any product meed your demand, please feel free to contact us.Small order samples can be accepted if price content. We're sure your any inquiry or requirement will get prompt attention. Five Star Feedback 1. Your feedhack is extremely important to us. If you are satisfied with our goods and service, please give us five-star feedback. 2. Thank you for your consideration, and please feel free to contact us if you have any questions. 3. Please contact us or email us before leaving any negative feedback or opening any dispute on the site. We will help you to resolve the problem. Thanks!