BatteriesAndButter.com: Batteries and Butter - Watch Battery Equivalence Chart

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Watch/Button Battery Chart

Energizer/Varta Rayovac/Renata	Maxell/Toshiba National/Sony	Seiko	Bulova	Citizen	Size mm	Capacity mAh	Voltage
301	SR43SW	SB-A8	226	280-01	11.6 x 4.2	120	1.5
303	SR44SW	SB-A9	226	280-08	11.6 x 5.4	170	1.5
309	.	.	7QT	.	7.9 x 5.4	80	1.5
313	.	.	.	280-06	11.6 x 5.4	265	1.35
314	SR 716 W	.	.	.	7.9 x 1.68	18	1.5
315	SR716SW	SB-AT	.	280-56	7.9 x 1.6	19	1.5
317	SR516SW	SB-AR	.	280.58	5.8 x 1.6	10	1.5
319	SR527SW	SB-AE/DE	226	280-60	5.8 x 2.6	18	1.5
321	SR616SW	.	611	280-73	6.8 x 1.6	13	1.5
323	.	SB-C3	211	.	7.9 x 5.4	95	1.35
325	.	SB-C1	6UDC	280-02	7.9 x 3.6	70	1.35
329	SR731SW	.	.	.	7.9 x 3.1	37	1.5
333	.	.	.	.	6.8 x 1.1	7	2
335	SR512SW	SB-AB	.	280-68	5.8 x 1.2	5	1.5
337	SR416SW	SB-AE/DE	615	280-60	4.8 x 1.65	8.3	1.5
339	SR614SW	.	.	.	6.8 x 1.4	11	1.5
341	SR714SW	.	.	.	7.9 x 1.4	14	1.5
343	.	.	218	.	11.6 x 3.6	105	1.35
344	SR1136SW	.	242	.	11.6 x 3.6	130	1.5
346	SR712SW	SB-DH	.	280-66	7.9 x 1.2	10	1.5
348	SR421SW	.	.	.	4.8 x 2.15	12	1.5
350	.	.	604	.	11.6 X 3.6	100	1.5
354	.	SB-C8	.	.	11.6 x 4.2	160	1.35
355	.	.	.	.	15.2 x 4.8	120	1.35
357	SR44W	SB-B9	228	.	11.6 x 5.4	190	1.5
361	SR721W	SB-BR/EK	.	280-53	7.9 x 2.1	24	1.5
362	SR721SW	SB-AK/DK	601	280-29	7.9 x 2.1	24	1.5
364	SR621SW	SB-AG/DG	602	280-34	6.8 x 2.1	21	1.5
365	SR1116W	.	.	.	11.6 x 1.6	40	1.5
366	SR1116SW	.	608	280-46	11.6 x 1.6	40	1.5
370	SR920W	SB-BN	.	280-51	9.5 x 2.1	38	1.5
371	SR920SW	SB-AN	605	280-31	9.5 x 2.1	23	1.5
372	SR916W	.	.	280-45	9.5 x 1.65	23	1.5
373	SR916SW	SB--AJ/DJ	617	280-45	9.5 x 1.6	29	1.5
376	SR626W	.	.	.	6.8 x 2.6	28	1.5
377	SR626SW	SB-AW	606	280-39	6.8 x 2.6	30	1.5
379	SR521SW	SB--AC/DC	.	280-59	5.8 x 2.1	14	1.5
381	SR1120SW	SB--AS/DS	317	280-27	11.6 x 2.1	48	1.5
384	SR41SW	SB--A1/D1	247	280-18	7.9 x 3.6	45	1.5
386	SR43W	SB--B8	260	280-41	11.6 x 4.2	125	1.5
387	.	.	.	.	11.6 x 3.6	85	1.35
388	.	.	.	280-24	8.8 x 5.3	65	1.35
389	SR1130W	SB--BU	.	280-15	11.6 x 3.1	80	1.5
390	SR1130SW	SB--AU	603	280-24	11.6 x 3.1	80	1.5
391	SR1120W	SB--BS/ES	609	280-30	11.6 x 2.1	49	1.5
392	SR41W	SB--B1	247B	280-13	7.9 x 3.6	45	1.5
393	SR754W	SB--B3	255	.	7.9 x 5.4	80	1.5
394	SR936SW	SB--A4	.	.	9.5 x 3.6	78	1.5
395	SR927SW	SB-AP/DP	610	280-48	9.5 x 2.6	57	1.5
396	SR726W	SB-BL	612	280-52	7.9 x 2.6	32	1.5
397	SR726SW	SB-AL	607	280-28	7.9 x 2.6	35	1.5
399	SR927W	SB-BP/EP	613	280-44	9.5 x 2.6	56	1.5
750	.	.	.	.	5.7 x 1.0	5	2
751	.	.	.	.	5.8 x 1.2	325	2

The SR prefix stands for the Silver Oxide chemistry. The LR prefix indicates an Alkaline chemistry, which makes the battery cheaper and of about a third of the mili-Amp capacity (mAh) of a Silver Oxide battery.

When the three-digit model name of Silver Oxide battery begins with a 3, the equivalent three-digit Alkaline Watch battery begins with a 1.

The SW suffix indicates low-drainage, meaning that the battery will spend the energy slower. It is best for devices that pull a low current. High-drain devices will consume faster the battery charge, and require batteries with the W suffix.