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Movement · Miyota (Citizen) · automatic

Miyota 82S7 movement

Miyota 82S7 is an automatic movement by Miyota (Citizen): 11½‴1 in size, 5.67 mm1 high, 211 jewels, beating at 21,600 bph1, 42 h1 of power reserve.

Sources checked · How we source numbers
Miyota 82S7: movement drawingMiyota 82S7, dial side, to scale: movement diameter — (unknown); size 11½‴; height 5.67 mm; hour, minute, second hand hole Ø — (unknown).movement Ø —11½‴ as printed5.67SIDE · SECTION · height 5.67Ahour, minute, second hand hole Ø —DETAIL A · 10:1
Miyota 82S7, dial sideDrawing from data, not a photo · mm

Miyota 82S7 at a glance

Diameter
11½‴1
Height
5.67 mm1
Jewels
211
Beat rate
21,600 bph1
Power reserve
42 h1
Accuracy
−20 to +40 s/day1
Lift angle
49°3

New to the terms? Read quartz vs automatic or watch movement types.

Setting and servicing the Miyota 82S7

The figures a watchmaker or a timegrapher needs for the Miyota 82S7, as Miyota prints them.

Lift angle
49°3
Accuracy (maker)
−20 to +40 s/day1
Positional difference
50 s/day1
Power reserve
42 h1
Hacking seconds
Yes1
Hand winding
Yes1
Crown turns to full wind
403

What fits the Miyota 82S7

The figures a dial, hands or case must match for the Miyota 82S7, as Miyota prints them.

Stem part number
065-2123

Same family at Miyota

How each differs from the Miyota 82S7, worked out from the figures on its own page.

What can replace the Miyota 82S7

7 calibres of the Miyota 82xx group checked against the Miyota 82S7: diameter, height, hand holes, date window, crown and dial feet. A verdict marked “not confirmed” lacks one of those figures for the Miyota 82S7 or the other calibre.

Not published, so not checked in several comparisons:

  • a millimetre diameter for Miyota 82S7
  • hand holes for Miyota 82S7, Miyota 82S5, Miyota 82S0, Miyota 8215, Miyota 8315, Miyota 8N24, Miyota 8205 and Miyota 821A
  • crown position for Miyota 82S7, Miyota 82S5, Miyota 82S0, Miyota 8315, Miyota 8N24 and Miyota 821A
  • dial feet for Miyota 82S7, Miyota 82S5, Miyota 82S0, Miyota 8315, Miyota 8N24, Miyota 8205 and Miyota 821A

  1. Miyota 82S7 → Miyota 82S5

    Drop-in· not confirmed
    • =diameterSame size in lignes: 11½‴.
    • =heightSame height: 5.67 mm.

  2. Miyota 82S7 → Miyota 82S0

    Fits with changes· not confirmed
    • =diameterSame size in lignes: 11½‴.
    • =heightSame height: 5.67 mm.
    • ≠functionsMiyota 82S0 has no small seconds: the dial and hands of Miyota 82S7 won’t match.

  3. Miyota 82S7 → Miyota 8215

    Fits with changes· not confirmed
    • =diameterSame size in lignes: 11½‴.
    • =heightSame height: 5.67 mm.
    • ≠functionsMiyota 8215 has no small seconds: the dial and hands of Miyota 82S7 won’t match.
    • ≠dateMiyota 8215 has a date: a dial without a window hides it, and the crown gets a date-setting step.

  4. Miyota 82S7 → Miyota 8315

    Fits with changes· not confirmed
    • =diameterSame size in lignes: 11½‴.
    • =heightSame height: 5.67 mm.
    • ≠functionsMiyota 8315 has no small seconds: the dial and hands of Miyota 82S7 won’t match.
    • ≠dateMiyota 8315 has a date: a dial without a window hides it, and the crown gets a date-setting step.

  5. Miyota 82S7 → Miyota 8N24

    Fits with changes· not confirmed
    • =diameterSame size in lignes: 11½‴.
    • ≠heightMiyota 8N24 is 0.12 mm thinner (5.55 mm vs 5.67 mm): the dial and hands sit lower, so a spacer or a different stem height may be needed.
    • ≠functionsMiyota 8N24 has no small seconds: the dial and hands of Miyota 82S7 won’t match.

  6. Miyota 82S7 → Miyota 8205

    Fits with changes· not confirmed
    • =diameterSame size in lignes: 11½‴.
    • =heightSame height: 5.67 mm.
    • ≠functionsMiyota 8205 has no small seconds: the dial and hands of Miyota 82S7 won’t match.
    • ≠dateMiyota 8205 adds a day wheel: a date-only dial hides it, and the crown gets a day-setting step.
    • ≠dateMiyota 8205 has a date: a dial without a window hides it, and the crown gets a date-setting step.

  7. Miyota 82S7 → Miyota 821A

    Fits with changes· not confirmed
    • ?diameterDiameter not published for both: the case seat cannot be checked.
    • =heightSame height: 5.67 mm.
    • ≠functionsMiyota 821A has no small seconds: the dial and hands of Miyota 82S7 won’t match.
    • ≠dateMiyota 821A adds a day wheel: a date-only dial hides it, and the crown gets a day-setting step.
    • ≠dateMiyota 821A has a date: a dial without a window hides it, and the crown gets a date-setting step.

    Not published, so not checked: diameter for Miyota 821A.

All Miyota 82S7 figures

Every figure we hold for the Miyota 82S7, with its source. Where sources disagree, each value is shown.

Size

Size in lignes
11½‴1
Height
5.67 mm1

Running

Jewels
211
Beat rate
21,600 bph1
Power reserve
42 h1
Hands and functions
hours, minutes, small seconds, 24-hour display1
Hacking seconds
Yes1
Hand winding
Yes1
Crown turns to full wind
403

Accuracy and care

Accuracy (maker)
−20 to +40 s/day1
Positional difference
50 s/day1
Lift angle
49°3

Fitting: dial, hands, stem

Stem part number
065-2123
Movement holder part
500-7103
Dial screw part
929-6103

Not published yet

  • Hand holes: only in Miyota’s drawing; not read yet
  • Dial feet: not in the documents we read
  • Do not set the date: not in the documents we read

Miyota 82S7 questions

What is the lift angle of the Miyota 82S7?

49°, as Miyota prints it. Enter 49° on a timegrapher to read amplitude correctly for the Miyota 82S7.

Source [3]

How accurate is the Miyota 82S7?

Miyota rates the Miyota 82S7 at −20 to +40 s/day, measured under Miyota’s own test conditions; a worn Miyota 82S7 can run outside the −20 to +40 s/day range.

Source [1]

How long does the Miyota 82S7 run when fully wound?

About 42 h from a full wind, per Miyota; a full hand wind takes about 40 crown turns.

Source [1][2][3]

Does the Miyota 82S7 hack and hand-wind?

Yes, it hacks: the seconds hand stops with the crown pulled out. It can be wound by the crown.

Source [1]

What can replace the Miyota 82S7?

From the published figures, the closest is the Miyota 82S5: drop-in, not confirmed for every part. Same size in lignes: 11½‴.

More on movements

Sources

Documents checked · Report a wrong number

  1. 1Citizen Watch Co., Ltd. (MIYOTA) — MIYOTA movement 82S7 product page · html · read
  2. 2Citizen Watch Co., Ltd. (MIYOTA) — MIYOTA movement overview (catalogue table, 2 pages) · pdf · read
  3. 3Citizen Watch Co., Ltd. (MIYOTA) — Spec. sheet (82S7) · pdf · read