What type of battery do you use? All our watches are fitted with a standard silver oxide button cell battery, specifically a Sony 364 (SR621SW). This battery should be available at most watch stores and/or jewelers. For battery replacement, contact a watch store near you. Related articles My watch stopped - what do I do? How long is the battery life of my watch? How do I get my Daniel Wellington product repaired? How long is the warranty valid and what does it cover? What type of movement is used?