The Renata 377 is a 1.55V silver oxide watch battery, also known as SR626SW. It’s one of the most common watch cell sizes, and a cheap way to get a stopped watch going again. Renata is a Swiss battery maker and part of the Swatch Group, and this cell is made in Switzerland.
The 377 measures 6.8mm across and 2.6mm thick, with a rated capacity of 24mAh. It’s the same diameter as the 364 but a little thicker, so do check the code on your old battery before you swap. You may also see this size listed as SR66. It’s a go-to size for watch battery changes. Supplied as a single cell in a blister pack, it’s a great value way to replace just the battery you need.
Product Features
- Battery size/type: 377 watch battery (SR626SW, also SR66)
- Chemistry: Silver oxide
- Voltage: 1.55V
- Capacity: 24mAh
- Size: 6.8mm diameter x 2.6mm
- Pack size: Single cell in blister
- Model numbers: MPN: 377WB
- Barcode: GTIN: 785618325836
Order before 12pm Monday to Friday for same-day dispatch on in-stock items, or Click & Collect from your local Home Hardware store.
