GS-CO306-8

The manufacturer's catalog index (or product packaging) lists this crystal for:
 
Bulova: 1206D-1 (crystal), 1206E (crystal), 1206E-1 (crystal), 1206F (crystal), 2245 (case/model), 2249 (case/model), 2303 (case/model), 2308 (case/model), 2402 (case/model), 2420 (case/model), 2437 (case/model), 2455 (case/model), 2513 (case/model), 2556 (case), 2683 (case/model), 2817 (case/model), 2881 (case/model), 2977 (case/model), B2977 (case/model), 2995 (case/model), 3208 (case/model), 3319 (case/model), 46912 (model), 46913 (model), 53318 (model), 53319 (model), 53323 (model), 53325 (model), 53508 (model), 53509 (model), 53521 (model), 53522 (model), 53874 (model), 53877 (model), 53884 (model), 53888 (model), 55500 (model), 55501 (model), 55561 (model), 55562 (model), 55706 (model), 55707 (model), 55708 (model), 55718 (model), 55719 (model), 62200 (model), 62201 (model), First Lady J, First Lady K, Golden Goddess A, Golden Goddess B, Golden Goddess R, Golden Goddess S, La Petite EE, La Petite FF, La Petite RRR, La Petite SSS, Leading Lady E, Leading Lady F, Nocturne J, Nocturne K, Sunburst C

Check size and shape versus GS-CY265-18H, GS-CO306-8, SUC-RW65-3, SUC-RC100-8T for Bulova First Lady J. Check size and shape versus GS-CC256, GS-CO306-8 for Bulova Leading Lady E, Leading Lady F.