Due to their stable discharge characteristics, these silver oxide 390/389 button cells are used extensively in calculators, watches, and specific photographic applications.
Specification:
System: Primary Non-Rechargeable Cells
Type: Silver Oxide
Voltage: 1.55V
Dimension: 11.6 mm Diameter
Height: 3.1 mm
Weight: 1.32 g
It is also known as 389, V389, SR1130SW, 390, D390, 390, V390, 534, 390, 603, SB-AU, 280-24, GP390, SR54, and SR1130.