393 SR754W SR48W

Replaces:  309 SR754W SR48W TIMEX F RW48 546 SB-B3 

Cell Size: 7.9 x 5.4 mm [0.311 X 0.213 Inches]

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Silver Oxide cells will offer a more stable discharge pattern than alkaline, essential for longer life and performance, in precision instruments such as watches.