not just for seiko watches a general ag code to the three digit codes/ and others used


Alkaline (AG) Watch Battery Equivalence Chart

Alkaline High Drain Silver Oxide Low Drain Silver Oxide

JIS Energizer Maxell Energizer Maxell Energizer Maxell Size mm

AG1 164 LR621 364 SR621SW 363 SR621W 6.8 x 2.1
AG2 196 LR726 397 SR726SW 396 SR726W 7.9 x 2.6
AG3 192 LR41 384 SR41SW 392 SR41W 7.9 x 3.6
AG4 177 LR626 377 SR626SW 376 SR626W 6.8 x 2.6
AG5 193 LR754 309 SR754SW 393 SR754W 7.9 x 5.4
AG6 171 LR921 371 SR920SW 370 SR920W 9.5 x 2.1
AG7 195 LR926 395 SR927SW 399 SR927W 9.5 x 2.6
AG8 191 LR1120 381 SR1120SW 391 SR1120W 11.6 x 2.1
AG9 136 LR936 394 SR936SW 9.5 x 3.6
AG10 189 LR1130 390 SR1130SW 389 SR1130W 11.6 x 3.1
AG11 162 LR721 362 SR721SW 361 SR721W 7.9 x 2.1
AG12 186 LR43 301 SR43SW 386 SR43W 11.6 x 4.2
AG13 A76 LR44 303 SR44SW 357 SR44W 11.6 x 5.4

115 LR716 315 SR716SW 314 SR716W 7.9 x 1.6
117 LR516 317 SR516SW 307 SR516W 5.8 x 1.6
119 LR527 319 SR527SW 5.8 x 2.6
121 LR616 321 SR616SW 6.8 x 1.6
129 LR731 329 SR731SW 7.9 x 3.1
135 LR512 335 SR512SW 5.8 x 1.2
137 LR416 337 SR416SW 4.8 x 1.65
139 LR614 339 SR614SW 6.8 x 1.4
141 LR714 341 SR714SW 7.9 x 1.4
144 LR1136 344 SR1136SW 11.6 x 3.6
146 LR712 346 SR712SW 7.9 x 1.2
148 LR421 348 SR421SW 4.8 x 2.15
166 LR1116 366 SR1116SW 365 SR1116W 11.6 x 1.6
173 LR916 373 SR916SW 372 SR916W 9.5 x 1.6
179 LR521 379 SR521SW 5.8 x 2.1