SG11S, V344, 1136, LR1136, ST1136, LR42, SR42, 529 Silver Oxide Button Cell  1.55V High Capacity.

Typically for watches & calculators and miniature equipment 11.6 X 3.6mm. Equivalent to V344, 1136, 180, 218, 242, 344, 350, Timex B, LR42, SR42, AR42, 502, 509, 529, RW36, SR1136, AG11, GP344. Mainly for Larger Watches & Some Clocks

Note: Battery Iilustrations are for identification only. Type numbers and manufacturers may vary. All batteries are high quality brands