Watch battery · silver oxide
SR916SW (373) battery
SR916SW = 373 = SB-AJ. 9.51 × 1.65 mm1 Sources disagree: manufacturer 1.65 mm / secondary source 1.6 mm2 silver oxide, 1.55 V1. Equivalents: SR916W, V373, B-373L, 617, 280-45, 9936 and 10 more (19 codes in 13 code systems, full table); 83 calibres, modules and models in our base take it.
SR916SW equivalents
The same cell under 19 names. Any of them fits where 373 does; the drain type is the column.
| Code system | SR916SWlow drain | SR916Whigh drain |
|---|---|---|
| IEC | SR9161SR681 | — |
| Energizer | 3731 | 3722secondary source |
| Rayovac | RW3172secondary source | — |
| Duracell | D3732secondary source | D3722secondary source |
| Varta | V3731 | — |
| Seiko | SB-AJ1 | — |
| Citizen | 280-451 | 280-612secondary source |
| Orient | 080-D401 | — |
| Timex | WA1 | — |
| Bulova | 6171 | — |
| Omega | 99361 | — |
| Berec | B-373L1 | — |
| Waltham | M1 | — |
Size and chemistry
Show SR916SW at true size (1:1)
Cell types in this size
2 cell types share the 9.5 × 1.65 mm size.
SR916SW
Low drain (SW): for plain analog watches · Silver Oxide3
14 codes in our sources name this cell type.
SR916W
High drain (W): for watches with lights, alarms or chronographs · Silver Oxide2secondary source
3 codes in our sources name this cell type.
LR916
Alkaline cell of the same size: the IEC digits are the size, the L is the chemistry. LR916 lands on this page by that rule; our sources hold no alkaline datasheet for it, so no figures are shown.
Capacity by manufacturer
Energizer 373SR916SW
30 mAh3cutoff 1.2 V as printedDatasheet ↗
Can I use another cell instead of 373?
Verdicts follow our swap rules from the datasheet size, voltage and cell type.
Use instead of SR916SW
SR916W
Fits, with a catchFits: SR916W is the high-drain version of the same size.
SR916W and SR916SW are both 9.5 mm × 1.65 mm, 1.55 V silver oxide. SR916W is made for bursts of current (lights, alarms); in a plain watch it works but may not last as long as SR916SW.
Draw both cells in the swap checkerUse instead of SR916SW
LR916
Fits, with a catchFits, but LR916 is alkaline and runs shorter.
Same 9.5 mm × 1.65 mm size. LR916 is an alkaline (L) cell; the watch is made for silver oxide (S). Use it to get the watch going, then fit SR916SW.
Draw both cells in the swap checkerNo: SR920SW is 0.4 mm taller than SR916SW.
Same 9.5 mm diameter, but SR920SW stands 2.05 mm against 1.65 mm: the case back presses on it or does not close.
SR920SW: 9.5 mm1 × 2.05 mm1 Sources disagree: manufacturer 2.05 mm / secondary source 2 mm2, 1.55 V1
Draw both cells in the swap checker
What uses 373
83 calibres, modules and models in our base name this size.
Seiko calibres83[4]
Seiko's battery chart gives 2–3 years of battery life for these calibres. Seiko, Pulsar, Lorus and Alba calibres share the chart.
- 5Y81
- 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
Warnings from the makers
Not a stand-in for a 3 V lithium cell
“are 3 volts, not 1.5 volts and cannot be substituted for a 1.5 volt silver oxide watch battery”[2]secondary source
Questions
What is the 373 battery equivalent?
SR916SW, SR916W, V373, B-373L, 617, 280-45, 9936, 080-D40, SB-AJ, SR916 and 6 more codes name the same 9.5 × 1.65 mm silver oxide cell as 373. Any maker's cell under one of these codes fits; match the drain type (SW or W) when the watch maker names one.
Is 371 the same as 373?
No. SR920SW is 0.4 mm taller than SR916SW. Same 9.5 mm diameter, but SR920SW stands 2.05 mm against 1.65 mm: the case back presses on it or does not close.
Can I use 372 instead of 373?
Yes, it fits: 372 is SR916W, the high-drain cell of the same size. SR916W and SR916SW are both 9.5 mm × 1.65 mm, 1.55 V silver oxide. SR916W is made for bursts of current (lights, alarms); in a plain watch it works but may not last as long as SR916SW.
Is LR916 the same as SR916SW?
No: LR916 is an alkaline cell of the same size, SR916SW is silver oxide. Fits, but LR916 is alkaline and runs shorter. Same 9.5 mm × 1.65 mm size. LR916 is an alkaline (L) cell; the watch is made for silver oxide (S). Use it to get the watch going, then fit SR916SW.
What watches use the 373 battery?
In our base: 83 Seiko calibres (5Y81, 5Y85, 5Y89, 5Y86…). The full lists are on this page, with the brand tables they come from.
How long does a 373 battery last in a watch?
Seiko's battery chart gives 2 to 3 years for its 83 calibres on this cell, 3 years most often. Life depends on the calibre's current draw, not on the cell alone.
Seiko battery chart[4]
Sources
Documents checked · Report a wrong number
- 1Murata Manufacturing Co., Ltd. — Watch Battery Selection Guide / Cross Reference (1 page) · pdf · read
- 2WatchBattery (UK) Ltd — Watch Battery Cross Reference Table · html · read
- 3Energizer Holdings, Inc. — Product datasheet ENERGIZER 373 · pdf · read
- 4Seiko Watch Corporation (service information) — Value Checking List / Battery No. Cross-reference Chart · pdf · read