BATTERY-SR626

SR626SW Silver Oxide batteries, commonly known as 377 batteries. These are standard "coin" or "button" cells typically used in analog wristwatches.
​Here is a quick breakdown of what you need to know about these batteries:
​Key Specifications
​Voltage: 1.55V (standard for silver oxide).
​Chemistry: Silver Oxide (Ag_{2}O). These provide a very stable voltage discharge, which is why they are preferred for timekeeping.
​Compatibility: This battery is interchangeable with several other codes depending on the brand:
​377 (most common alternative)
​AG4 (alkaline equivalent, though silver oxide lasts longer)
​LR626 or LR66
​SR66
​V377