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Movement · Miyota (Citizen) · quartz

Miyota 6S21 movement

Miyota 6S21 takes SR927SW3, lasting about 3 years1. It is a quartz movement by Miyota (Citizen): 15‴1 in size, 4.9 mm1 high, accurate to ±20 s/month1.

Sources checked · How we source numbers
Miyota 6S21: movement drawingMiyota 6S21, dial side, to scale: movement diameter — (unknown); size 15‴; height 4.9 mm; hour, minute, second hand hole Ø — (unknown).movement Ø —15‴ as printed4.9SIDE · SECTION · height 4.9Ahour, minute, second hand hole Ø —DETAIL A · 10:1
Miyota 6S21, dial sideDrawing from data, not a photo · mm

Miyota 6S21 at a glance

Diameter
15‴1
Height
4.9 mm1
Battery
SR927SW3
Battery life
3 years1
Accuracy
±20 s/month1
Hands and functions
chronograph, date1
Do not set the date
21:00–01:003

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

Running the Miyota 6S21

Accuracy and battery figures for the Miyota 6S21, as Miyota prints them.

Accuracy (maker)
±20 s/month1
Battery life
3 years1
Do not set the date
21:00–01:003

Battery for the Miyota 6S21

  • SR927SW[3]Sizes and equivalents of the SR927SW on its page

What fits the Miyota 6S21

The figures a dial, hands or case must match for the Miyota 6S21, as Miyota prints them.

Stem part number
065-A133

Same family at Miyota

How each differs from the Miyota 6S21, worked out from the figures on its own page.

All Miyota 6S21 figures

Every figure we hold for the Miyota 6S21, with its source. Where sources disagree, each value is shown.

Size

Size in lignes
15‴1
Height
4.9 mm1

Running

Hands and functions
chronograph, date1

Accuracy and care

Accuracy (maker)
±20 s/month1
Do not set the date
21:00–01:003

Fitting: dial, hands, stem

Stem part number
065-A133

Power

Battery
SR927SW3
Battery life
3 years1

Not published yet

  • Jewels: not published
  • Low-battery sign: not published
  • Hand height options: not published
  • Hand holes: only in Miyota’s drawing; not read yet
  • Dial feet: not in the documents we read

Miyota 6S21 questions

What battery does the Miyota 6S21 take?

The Miyota 6S21 takes SR927SW; Miyota gives 3 years of life.

Source [3][2][1]

When should you not change the date on the Miyota 6S21?

Not between 21:00 and 01:00, per Miyota: the Miyota 6S21’s date change is engaged then, so move its hands past 01:00 before using the quick-set.

Source [3][4]

More on movements

Sources

Documents checked · Report a wrong number

  1. 1Citizen Watch Co., Ltd. (MIYOTA) — MIYOTA movement 6S21 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 (6S21) · pdf · read
  4. 4Citizen Watch Co., Ltd. (MIYOTA) — Instruction manual (6S21) · pdf · read