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Watch battery · silver oxide

SR712SW (346) battery

SR712SW = 346 = SB-AH. 7.91 × 1.25 mm1 silver oxide, 1.55 V1. Equivalents: V346, 628, 280-66, 9949, SR712 (8 codes in 7 code systems, full table); 2 calibres, modules and models in our base take it.

Sources checked · How we source numbers
SR712SW · 346: drawing to scaleSR712SW · 346: diameter 7.9 mm, height 1.25 mm.Ø 7.9−+1.25SR712SW · 346
SR712SW: face and edge view to scale, from the datasheet sizesDrawing from data, not a photo · mm
Diameter
7.9 mm1
Height
1.25 mm1
Nominal voltage
1.55 V1
IEC designation
SR7121

SR712SW equivalents

The same cell under 8 names. Any of them fits where 346 does.

Code systemSR712SWlow drain
IECSR7121
Energizer · Rayovac · Renata3461
VartaV3461
SeikoSB-AH1
Citizen280-661
Bulova6281
Omega99491

Size and chemistry

Diameter
7.9 mm1
Height
1.25 mm1
Nominal voltage
1.55 V1
Chemistry
Silver Oxide2
IEC designation
SR7121
1.253461.453411.653152.13622.63973.13293.63845.4393
Every 7.9 mm silver oxide size with a page, edge view to scale. Only the height tells them apart.
Show SR712SW at true size (1:1)
1:1 · not calibrated: sizes are approximate
SR712SW: drawing to scaleSR712SW: diameter 7.9 mm, height 1.25 mm.Ø 7.9−+1.25SR712SW
01020304050

Cell types in this size

SR712SW

Low drain (SW): for plain analog watches · Silver Oxide2

7 codes in our sources name this cell type.

LR712

Alkaline cell of the same size: the IEC digits are the size, the L is the chemistry. LR712 lands on this page by that rule; our sources hold no alkaline datasheet for it, so no figures are shown.

Capacity by manufacturer

Energizer 346SR712SW

9.5 mAh2cutoff 1.2 V as printedDatasheet ↗

Can I use another cell instead of 346?

Verdicts follow our swap rules from the datasheet size, voltage and cell type.

Check any other pair

  • Use instead of SR712SW

    LR712

    Fits, with a catch

    Fits, but LR712 is alkaline and runs shorter.

    Same 7.9 mm × 1.25 mm size. LR712 is an alkaline (L) cell; the watch is made for silver oxide (S). Use it to get the watch going, then fit SR712SW.

    Draw both cells in the swap checker

  • Use instead of SR712SW

    SR714SW

    No

    No: SR714SW is 0.2 mm taller than SR712SW.

    Same 7.9 mm diameter, but SR714SW stands 1.45 mm against 1.25 mm: the case back presses on it or does not close.

    SR714SW: 7.9 mm1 × 1.45 mm1, 1.55 V1

    Draw both cells in the swap checker

What uses 346

2 calibres, modules and models in our base name this size.

Seiko calibres2[3]

Seiko's battery chart gives 2 years of battery life for these calibres. Seiko, Pulsar, Lorus and Alba calibres share the chart.

  • 6730
  • 9A85

Questions

What is the 346 battery equivalent?

SR712SW, V346, 628, 280-66, 9949, SB-AH, SR712 name the same 7.9 × 1.25 mm silver oxide cell as 346. Any maker's cell under one of these codes fits.

Is 341 the same as 346?

No. SR714SW is 0.2 mm taller than SR712SW. Same 7.9 mm diameter, but SR714SW stands 1.45 mm against 1.25 mm: the case back presses on it or does not close.

Is LR712 the same as SR712SW?

No: LR712 is an alkaline cell of the same size, SR712SW is silver oxide. Fits, but LR712 is alkaline and runs shorter. Same 7.9 mm × 1.25 mm size. LR712 is an alkaline (L) cell; the watch is made for silver oxide (S). Use it to get the watch going, then fit SR712SW.

What watches use the 346 battery?

In our base: 2 Seiko calibres (6730, 9A85…). The full lists are on this page, with the brand tables they come from.

Sources

Documents checked · Report a wrong number

  1. 1Murata — Watch Battery Selection Guide / Cross Reference · pdf · read
  2. 2Energizer Holdings, Inc. — Product datasheet ENERGIZER 346 · pdf · read
  3. 3Seiko Watch Corporation (service information) — Value Checking List / Battery No. Cross-reference Chart · pdf · read