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Watch batteries · Seiko, Pulsar, Lorus, Alba

Seiko watch battery replacement

Seiko's own table matches 1,394 calibre entries to their cells[1]; 1,285 of them to a named cell, most often SR920W (153). 27 hold a rechargeable cell charged by light or motion: replace it only with the same type. Some calibres have more than one entry; check the full case reference and the old cell marking before choosing a replacement.

Sources checked · How we source numbers
  • SR920W153
  • SR621SW131
  • SR927SW124
  • CR202584
  • SR916SW83
  • CR201677
  • SR1130SW61
  • SR43SW56
Calibre entries per cell; amber: rechargeable.

Which battery a Seiko takes

Every cell in Seiko's table, with how many calibre entries name it. 109 calibre entries sit on a calibre whose battery we have not read yet.

CellTypecalibre entriesCalibres
SR920W[1]primarylife 2–5 years1532M21, 5H22, 5H23, 5H26, 5L10, 5L14, 5L15, 5P22
All 153 calibres

5P23, 5P29, 5P30, 5P31, 5P32, 5P39, 5Y00, 5Y01, 5Y02, 5Y22, 5Y23, 5Y29, 5Y30, 5Y31, 5Y32, 5Y39, 5Y37, 5Y63, 5Y66, 5Y67, 6F22, 6F24, 6F28, 6F29, 6F38, 6F25, 6F26, 6F75, 6F32, 6F34, 6L01, 6020A, 6020B, 6030, 6530, 6531, 6532, 6533, 6539, 7N22, 7N29, 7N33, 7N35, 7N36, 7N42, 7N43, 7N21C, 7N22C, 7N29C, 7N32C, 7N33C, 7N39C, 7N42C, 7N43C, 7N47C, 7N48C, 7N35C, 7N36C, 7N47, 7N48, 7N93, 7N93C, 8J55A, 8J56A, 8J55B, 8J56B, 8M11, 8M15, 8M18, 8M25, 8M26, 8M32, 8M35, 8M37, 8M44, 8M48, 8M51, 9F61, 9F62, 9F82, 9F83, 9061, 9063, 9544, 9641, 9642, 9661, 9681, 9682, V347, V348, V621, V653B, V658B, V654, V655A, V656, V657A, V655B, V657B, V671, V691, V692, V693, V694, V695, V69F, V721B, V722A, V729A, V733A, V735A, V736A, V742A, V743A, V721C, V722C, V729C, V732C, V733C, V735C, V739C, V742C, V743C, V744C, V736C, VD53, VX32E, VX3KE, VX42E, VX43E, Y100, Y101, Y102, Y109, W598, H556, H557, H601, H801, H803, V011, V051, Y960, Y961

SR621SW[1]primarylife 1.5–4 years1311320, 1400A, 1400C, 1421, 1428, 2A27, 2A22, 2A23
All 129 calibres

2A24, 2A29, 2A32, 2A52, 2A54, 2A59, 2D22, 2K02, 2K03, 2K22, 2K23, 2320, 2340, 3E22, 3E23, 3E29, 3E32, 3E39, 3E25, 3L12, 3L14, 3L19, 3Y02, 3Y03, 3Y09, 4J52A, 4J52B, 4K22, 4K24, 4K25, 4K26, 4K34, 5Y95, 6N76, 7N01A, 7N07A, 7N08A, 7N82A, 7N83A, 7N85A, 7N89A, 7N01C, 7N07C, 7N08C, 7N82C, 7N83C, 7N85C, 7N89C, 7N01D, 7N07D, 7N08D, 7N82D, 7N83D, 7N89D, 8E38, 8Y21, 8620, 8621, V242, V243, V247, V248, V249, V250, V251, V252, V253, V256, V257, V258, V254, V267, V301, V610, V612, V701A, V707A, V782A, V783A, V785A, V789A, V701C, V707C, V708C, V782C, V783C, V785C, V789C, V701D, V707D, V708D, V782D, V783D, V789D, V708A, V802, V803, V806, V891, V892, V893, V894, V896, V899, VJ21, VJ22, VJ32, VJ33, VX51E, VX82, VX89, Y432, Y434, Y480, Y481, Y482, Y483, Y590, L122, W204, W210

SR927SW[1]primarylife 1.5–5 years1242632, 2633, 2639, 5B21, 5S21, 5S42, 5T12, 5T24
All 124 calibres

5T32, 5T52, 5T72, 5T50, 5T82, 6A32, 6M12, 6M13, 6M15, 6M23, 6M25, 6M26, 6M37, 6M91, 6922, 6923, 7C43, 7J21, 7T04, 7T11, 7T22, 7T27, 7T24, 7T32, 7T34, 7T36, 7T42, 7T44, 7T39, 7T52, 7T59, 7T62, 7T82, 7T84A, 7T85, 7T86, 7T92, 7T94, 7800, 7810, 7812, 7813, 7820, 7830, 7832, 7853, 9920, 9923, 9921, 9940, 9942, 9943, 9980, 9983, N944, N945, N94J, V52HA, V531, V534, V532, V533, V535, V536, V537, V539, V53L, V544, V681, V682, Y106, Y107, Y108, Y142, Y143, Y145, Y147, Y148, Y182A, Y182B, Y187, Y189, Y551, Y552, Y553, Y557, Y558, Y559, YM56, YM62, A229, A239, A257, A259, A439, B122, B137, C359, D031, F162, L012, S600, W600, Y478, H249, H259, H357, H448, H449, H558, H711, V071, V072, Y911, Y950, Y951

CR2025[1]primarylife 2–10 years84A860, A861, G139, G510, L600, M422, M705, M725
All 84 calibres

M726, M795, M796, S240, S640, S651, S670, S800, S820, S821, S930, W041, W061, W062, W071, W072, W073, W100, W110, W111, W120, W130, W136, W150, W151, W160, W339A, W339B, W348, W349, W357, W358, W359, W440, W441, W442, W520, W522, W521, W525, W524, W551, W552, W553, W620, W650, W621, W626, W670, W671, W680, W700, W701, W730, W750, W751, W753, W760, Y737, W754, W780, W800, W801, W802, W820, W803, W804, W810, W850, W851, W852, W853, W854, W855, Y717, Y718

SR916SW[1]primarylife 2–3 years835Y81, 5Y85, 5Y89, 5Y86, 5Y88, 7F18, 7F22, 7F24
All 83 calibres

7F26, 7F32, 7F38, 7F39, 7F68, 7F69, 7F87, 7F99, 7730, 7731, 7732, 7750, 7752, 7759, 7770, 7771, 7779, 7740, 7741, 7742, 7749, 7751, 7772, 8J40, 8J42, 8J82A, 8J41A, 8J80A, 8J81A, 8J41B, 8J80B, 8J81B, 8J82B, 8J86B, 8J86A, 9020, 9021, 9022, 9029, 9300, 9520, 9521, 9522, 9550, 9552, 9559, 9570, 9571, 9572, 9579, 9530, 9531, 9533, 9539, 9562, 9581, 9587, V321, V322, V329, V33F, V33G, V33J, V333, V336, V337, V338, V339, V342, VX39, VX3F, F322, F332, F441, L823

CR2016[1]primarylife 1.5–10 years777C21A, 7K52, 9M21, A708, A714, A718, A721, A781
All 77 calibres

A826, A827, A828, A829, A904, A906, A914, A927, A939, A964, A965, A966, C515, D409, D410, M421, S229, S234, S321, S610, W027, W028, W029, W040, W050, W140, W304, W306, W307, W308, W329, W309, W325, W561, W562, W590, W591, W770, W771, Y735, Y740, Y744, Y746, Y749, Y750, Y756, Y753, Y755, Y757, Y758, Y754, Y770, Y759, Y760, Y761, Y765, Y771, Y772, Y778, Y780, Y785, Y786, Y789, Y665, Y666, Y710, Y715, Y716, Y732

SR1130SW[1]primarylife 1–5 years617121, 7122, 7123, 7126, 7143, 7223, 8V20, 8V22
All 59 calibres

9721, 9722, 9723, 9726, V600, V601, V602, 0138, 0139, 0432, 0439, A021, A029, A031, A039, A127, A128, A129, A133, A134, A158, A159, A169, C153, C439, D229, F039, F051, M154, M158, M159, M354, M516, Y739, Y822, Y823, Y824, Y825, Y829, Y448, Y702, Y703, H021, H022, H023, H024A, H239, V081, V083, V084, V085

SR43SW[1]primarylife 1–10 years560822, 0823, 0841, 0842, 0843, 0852, 0853, 0903
All 56 calibres

0920, 0922, 0923, 4335, 4336, 4622, 4623, 4633, 4821, 4803, 4840A, 4842A, 4843A, 4822A, 4823A, 4883A, 7C11, 7C17A, 7C17B, 7C21B, 7C46A, 7C46B, 7518, 7545, 7546, 7550, 7559, 7548, 7549, 8V36, V636, Y504, Y510, Y512, Y513, Y514, 0114, 0124, 0624, 0634, 0654, 0674, 0644, 0662, 0664, S021, S022, S301

SR41SW[1]primarylife 1–3 years511600, 1609, 2622, 2623, 4100, 4110, 4120, 4122
All 51 calibres

4130A, 4130B, 4300, 4301, 4302, 4303, 4312, 4316, 4325, 4326, 4366, 4700, 4720, 7902, 7903, 7918, 8C25, Y433, 0531, 0532, 0533, 0534, A638, A639, M929, S023, S024, S026, S027, W610, Y430, Y446, Y456, Y476, Y486, Y723, Y726, Y728, Y729, H461, V031, Y651, Y652

SR626SW[1]primarylife 1.5–4 years485Y91, 6G28, 6G34, PC21, V306, V500A, V501A, V506
All 48 calibres

V511, V515A, V517, V500G, V501G, V515F, V515G, V501C, V52F, V507A, V507C, V52G, V516, V610, V612, V821A, V827, V828, V829, V821C, V824, VD78, Y121A, Y121G, Y136G, Y974, Y975, Y977, Y978, W209, Y792, Y798, Y799, NX01, NX03, NX02, NX04, NX11, NX14, NX15A

SR726SW[1]primarylife 2–3 years422620, 2621, 2625, 2626, 2661, 2628, 3421, 3422
All 41 calibres

3423, 8C22, 8C23, 8522, 8523, V421, V422, Y130, Y131, Y136, Y468, Y469, Y541, Y642, Y643, A547, B200, L221, L223, W200, W201, W207, Y800, Y490, Y491, Y499, Y670, E029, V001, V041, V061, V062, F623

SR1120SW[1]primarylife 1–5 years415Y13, 5854, 5855, 5856, 6423, 6429, 6430, 6431
All 41 calibres

6432, 6433, 6439, 8121, 8122, 8123, 9223, 9256, 9441, 9442, 9443, 9461, 9481, Y112, Y113, 9483, A135, A354, A359, A358, D138, F023, F033, G757, W540, W543, Y816, Y818, Y819, Y440, Y450, Y709, V091

SR521SW[1]primarylife 2–3 years371N01A, 1N01B, 2B20, 2B21, 2B31, 2C20, 2C21, 2E20A
All 35 calibres

2E50, 2E70, 2E20B, 2G38, 2G98, 2P21, 2Y01, 2Y07, 4J27A, 4J27B, 4J51A, 4J51B, 4N01, 7G21, V220, V220B, V230, V231, V232, V233, V235, V401, VC00, VC01, VC11, WWW1, WWW2

SR616SW[1]primarylife 2–5 years331220, 1230, 1270, 1221, 1231, 1271, 2K00, 2K01
All 33 calibres

3F30, 3F31, 3F81, 4J42, 4J45B, 4J85A, 5Y94, 7N00A, 7N00C, 7N00D, 7320, 7370, 7321, 7371, 8420, V300, V320, V700A, V700C, V800, V801, V805, VX50E, Y580, Y588

SR936SW[1]primarylife 2–5 years304822B, 4823B, 4883B, 4840B, 4842B, 4843B, 6T63, 7A07
All 30 calibres

7A28, 7A34, 7A36, 7A38, 7A48, 7A54, 8221, 8222, 8223, 8229, 8241, 8242, 8243, 8249, VK67, VK73, Y561, Y562, Y563, Y572, Y573, H127

CR2032[1]primarylife 2–5 years30B010, DH33, S031, S032, S033, S034, S038, S039
All 30 calibres

S051, S052, S053, S054, S059, S056, S057, S058, S05A, S120, S123, S124, S129, S251, S252, S322, S351, S701, W074, W076, W322, W772

rechargeable unit[1]rechargeablelife 7–10 years274826, 8T23, V851, 1B22, 3B21, 5B21, 7B22, 7B24
All 27 calibres

7B25, 7B26, 7B37, 7B42, 7B52, 8B43, 8B53, 8B82, A156, A258, A557, A628, W361, W362, W363, W370, W371, 4M71, 9T82

SR721W[1]primarylife 1.5–4 years275C20, 5C21, 5C22, 5C23, 5C59, 5930, 5931, 5932
All 27 calibres

5939, 5933, 7424, 7430, 7431, 7432, 7433, 7434, 7439, 7454, B004, B337, F221, F231, L423, L620, W410, Y661, Y662

SR716SW[1]primarylife 2–3 years275E20, 5E21, 5E29, 5E30, 5E31, 5E32, 5E39, 5E42
All 27 calibres

5E61, 8N20, 8N21, 8N25, 8N26, 8N70, 8N71, 8N75, 8N40, 8N41, 8N45, 8N46, 8N51, 8N65, 8N81, 8N91, V318, Y301, Y302

SR44SW[1]primarylife 1–5 years263800, 3802, 3803, 3820, 3819, 3870, 3823, 3862
All 26 calibres

3863, 3883, 3922, 3923, 8A20, 8A21, 8A23, 8A24, 0614, 8700, S060, S101, S111, S119, S341, W060, W921, W943

SR516SW[1]primarylife 2–3 years201N00, 2L10, 2P20, 2Y00, 4J40B, 4J41A, 4J80, 4J81
All 20 calibres

4J41B, 4J80B, 4J81B, 4J85B, 4N00, 4N20A, 4N70, 4N20D, 4N21A, 4N71, V400, Y520

CR1620[1]primarylife 1.5–3 years18L250, L251, S602, S650, W170, W173, W190, W240
All 18 calibres

W510, W511, W512, W605, P104, P106, P108, P114, P116, P118

SR512SW[1]primarylife 2 years101E20, 1E50, 1E70, 2F50, 2F70, 2N20, 5A50, 5A54
All 10 calibres

5A70, 5A74

SR527SW[1]primarylife 2–3 years92G28, 2G78, 5421, V236, V810, V811, Y591, YS30
All 9 calibres

YS31

CR2012[1]primarylife 2–10 years75G23, 7G21, 7K32, 7K36, W570, W571, W720
SR421SW[1]no page yetprimarylife 2 years61F21, 2J30, 2J31, 2J41, 2J80, Y151
BR2412[1]no page yetprimarylife 8–10 years58F32, 8F33, 8F56, 8F35, 8F58
CR2430[1]primarylife 3 years4S140, S143, S141, S149
CR1220[1]primarylife 5–7 years4W205, W206, W401, Y731
CR1616[1]primarylife 2–7 years3A944, G300, W710
BR2325[1]primarylife 1.5–2 years3S501, S521, UW01
SR416SW[1]primarylife 3 years21F20, Y150
CR1612[1]no page yetprimarylife 5 years24F32, 4F56
SR712SW[1]primarylife 2 years26730, 9A85
SR909SW[1]no page yetprimarylife 1 year19320
CR1216[1]primarylife 3 years1W580

Solar and rechargeable models

  • rechargeable unitNeverfor a primary cell27 calibre entries

By calibre family

223 families with a cell we have read, largest first. 13 more sit on calibres whose battery we have not read yet.

The other 199 families

Questions

What battery does a Seiko watch take?

It depends on the calibre on the case back. Most often: SR920W (153 calibre entries), SR621SW (131 calibre entries), SR927SW (124 calibre entries) and CR2025 (84 calibre entries).

Sources

Documents checked · Report a wrong number

  1. 1Seiko Watch Corporation (service information) — Value Checking List / Battery No. Cross-reference Chart · pdf · read