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Movement · Miyota (Citizen) · automatic

Miyota 9015 movement

Miyota 9015 is an automatic movement by Miyota (Citizen): 25.6 mm1 across, 3.9 mm2 high, 242 jewels, beating at 28,800 bph2, 42 h2 of power reserve. 1 watch in our base uses it (list).

Sources checked · How we source numbers
Miyota 9015: movement drawingMiyota 9015, dial side, to scale: movement diameter — (unknown); casing diameter 25.6 mm; stem at 3H; date 3H window 2.7 × 2 mm, centre 10.2 mm from the axis; date 6H window (size unknown); dial foot F1 at x 11.85 mm, y 2.83 mm (about 2:33); dial foot F2 at x −11.6 mm, y −3.76 mm (about 8:24); size 11½’’’‴; height 3.9 mm; hour, minute, second hand hole Ø — (unknown); dial centre hole Ø 2 mm.movement Ø —casing Ø 25.610.2stem 3Hdate 3H 2.7 × 2centre 10.2 from axisdate 6Hsize —, position onlyF1 2:33x 11.85 y 2.83F2 8:24x −11.6 y −3.7611½’’’‴ as printed3.9SIDE · SECTION · height 3.9Adial hole Ø 2hour, minute, second hand hole Ø —DETAIL A · 6:1
Miyota 9015, dial sideDrawing from data, not a photo · mm

Miyota 9015 at a glance

Diameter
25.6 mm1
Height
3.9 mm2
Jewels
242
Beat rate
28,800 bph2
Power reserve
42 h2
Accuracy
−10 to +30 s/day2
Lift angle
51°3
Do not set the date
20:30–02:003

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

Watches with the Miyota 9015

Setting and servicing the Miyota 9015

The figures a watchmaker or a timegrapher needs for the Miyota 9015, as Miyota prints them.

Lift angle
51°3
Accuracy (maker)
−10 to +30 s/day2
Positional difference
30 s/day2
Power reserve
42 h2
Do not set the date
20:30–02:003
Hacking seconds
Yes2
Hand winding
Yes2
Crown turns to full wind
403

What fits the Miyota 9015

The figures a dial, hands or case must match for the Miyota 9015, as Miyota prints them.

Dial feet
2:33, 8:241 · 2:33, 8:241
Dial centre hole
2 mm1
Casing diameter
25.6 mm1
Date window
3H, 6H2 · 3H1
Crown
3H2
Stem length
total 19.92 mm1
Stem part number
065-A053

All Miyota 9015 figures

Every figure we hold for the Miyota 9015, with its source. Where sources disagree, each value is shown.

Size

Size in lignes
11½’’’‴2
2 sources disagree; show every value
  • manufacturer 11½’’’‴2
  • manufacturer 11½‴4
Casing diameter
25.6 mm1
Height
3.9 mm2

Running

Jewels
242
Beat rate
28,800 bph2
Power reserve
42 h2
Hands and functions
hours, minutes, centre seconds, date2
Hacking seconds
Yes2
Hand winding
Yes2
Crown turns to full wind
403

Accuracy and care

Accuracy (maker)
−10 to +30 s/day2
Positional difference
30 s/day2
Lift angle
51°3
Do not set the date
20:30–02:003

Fitting: dial, hands, stem

Date window
3H, 6H2 · 3H1
Crown
3H2
Dial feet
2:33, 8:241 · 2:33, 8:241
Dial centre hole
2 mm1
Stem part number
065-A053
Stem length
total 19.92 mm1
Movement holder part
500-0023
Dial screw part
929-8083

Not published yet

  • Hand holes: only in Miyota’s drawing; not read yet

Versions

9015-20A · 9015-20Y*[2]

Miyota 9015 questions

Which watches use the Miyota 9015?

1 watch in our base name the Miyota 9015: Helmsman SS Meteorite.

What is the lift angle of the Miyota 9015?

51°, as Miyota prints it. Enter 51° on a timegrapher to read amplitude correctly for the Miyota 9015.

Source [3]

How accurate is the Miyota 9015?

Miyota rates the Miyota 9015 at −10 to +30 s/day, measured under Miyota’s own test conditions; a worn Miyota 9015 can run outside the −10 to +30 s/day range.

Source [2]

How long does the Miyota 9015 run when fully wound?

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

Source [2][3][4]

When should you not change the date on the Miyota 9015?

Not between 20:30 and 02:00, per Miyota: the Miyota 9015’s date change is engaged then, so move its hands past 02:00 before using the quick-set.

Source [3][5]

Does the Miyota 9015 hack and hand-wind?

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

Source [2]

More on movements

Sources

Documents checked · Report a wrong number

  1. 1Citizen Watch / Miyota — CAL.9015 Drawing (p.1 Frame for Case, p.2 Indications for Dial 9015-20A, p.3 Setting Stem 065-A05) · pdf · read
  2. 2Citizen Watch Co., Ltd. (MIYOTA) — MIYOTA movement 9015 product page · html · read
  3. 3Citizen Watch Co., Ltd. (MIYOTA) — CAL.9015 Spec. sheet · pdf · read
  4. 4Citizen Watch Co., Ltd. (MIYOTA) — MIYOTA movement overview (catalogue table, 2 pages) · pdf · read
  5. 5Citizen Watch Co., Ltd. (MIYOTA) — CAL.9015 Instruction manual · pdf · read
  6. 6Zelos Watches — Helmsman SS Meteorite product page · html · read