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Movement · Sellita · automatic

Sellita SW200-1 movement

Sellita SW200-1 is an automatic movement by Sellita: 26 mm1 across, 4.6 mm1 high, 261 jewels, beating at 28,800 bph1, 41 h1 of power reserve.

Sources checked · How we source numbers
Sellita SW200-1: movement drawingSellita SW200-1, dial side, to scale: movement diameter 26 mm; casing diameter 25.6 mm; date 3H window 2.7 × 2 mm, centre 10.2 mm from the axis; dial foot F1 at x 11.6 mm, y 3.78 mm (about 2:24); dial foot F2 at x −11.6 mm, y −3.78 mm (about 8:24); height 4.6 mm; hour hand hole Ø 1.5 mm; minute hand hole Ø 0.9 mm; second hand hole Ø 0.25 mm; dial centre hole Ø 2 mm.movement Ø 26casing Ø 25.610.2date 3H 2.7 × 2centre 10.2 from axisF1 2:24x 11.6 y 3.78F2 8:24x −11.6 y −3.78Ø 26 = 11.53‴4.6SIDE · SECTION · height 4.6Adial hole Ø 2hour Ø 1.5minute Ø 0.9second Ø 0.25DETAIL A · 6:1
Sellita SW200-1, dial sideDrawing from data · hand holes, dial feet, date window from Sellita’s manufacturer drawing

SW200-1 at a glance

Diameter
26 mm1
Height
4.6 mm1
Jewels
261
Beat rate
28,800 bph1
Power reserve
41 h1
Lift angle
50°1

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

Setting and servicing the SW200-1

The figures a watchmaker or a timegrapher needs for the SW200-1, as Sellita prints them.

Lift angle
50°1
Power reserve
41 h1
Hacking seconds
Yes1
Hand winding
Yes1
Crown turns to full wind
271

What fits the SW200-1

The figures a dial, hands or case must match for the SW200-1, as Sellita prints them.

Hand holes
hour 1.5 · minute 0.9 · second 0.25 mm1From Sellita’s manufacturer drawing.
Hand height options
8 options: 1, 2 (standard), 3 *, 4 *, 5 *, 6 *, 7 *, 8 *2From Sellita’s manufacturer drawing.
Dial feet
2:24, 8:242 · 2:24, 8:242From Sellita’s manufacturer drawing.
Dial centre hole
2 mm2From Sellita’s manufacturer drawing.
Casing diameter
25.6 mm1
Date window
3H2 · 6H2From Sellita’s manufacturer drawing.
Stem part number
031.121.000011

Same family at Sellita

How each differs from the SW200-1, worked out from the figures on its own page.

What can replace the SW200-1

7 calibres of the ETA 28xx and Sellita SW200 / SW300 group checked against the SW200-1: diameter, height, hand holes, date window, crown and dial feet. A verdict marked “not confirmed” lacks one of those figures for the SW200-1 or the other calibre.

Not published, so not checked in several comparisons:

  • hand holes for ETA 2824-2, ETA 2836-2, ETA 2892-A2, SW300-1, ETA 2893-2, SW220-1 and SW330-2
  • crown position for SW200-1, ETA 2824-2, ETA 2836-2, ETA 2892-A2, SW300-1, ETA 2893-2, SW220-1 and SW330-2
  • dial feet for ETA 2824-2, ETA 2836-2, ETA 2892-A2, SW300-1, ETA 2893-2, SW220-1 and SW330-2
  • date position for SW300-1, ETA 2893-2, SW220-1 and SW330-2

  1. SW200-1 → ETA 2824-2

    Drop-in· not confirmed
    • =diameterETA 2824-2’s movement diameter matches SW200-1’s casing diameter: 25.6 mm.
    • =heightSame height: 4.6 mm.

  2. SW200-1 → ETA 2836-2

    Fits with changes· not confirmed
    • =diameterETA 2836-2’s movement diameter matches SW200-1’s casing diameter: 25.6 mm.
    • ≠heightETA 2836-2 is 0.45 mm taller (5.05 mm vs 4.6 mm): check the room under the crystal and the case back; the hands sit higher.

  3. SW200-1 → ETA 2892-A2

    Fits with changes· not confirmed
    • =diameterETA 2892-A2’s movement diameter matches SW200-1’s casing diameter: 25.6 mm.
    • ≠heightETA 2892-A2 is 1 mm thinner (3.6 mm vs 4.6 mm): the dial and hands sit lower, so a spacer or a different stem height may be needed.

  4. SW200-1 → SW300-1

    Fits with changes· not confirmed
    • =diameterSame casing diameter: 25.6 mm.
    • ≠heightSW300-1 is 1 mm thinner (3.6 mm vs 4.6 mm): the dial and hands sit lower, so a spacer or a different stem height may be needed.

  5. SW200-1 → ETA 2893-2

    Fits with changes· not confirmed
    • =diameterETA 2893-2’s movement diameter matches SW200-1’s casing diameter: 25.6 mm.
    • ≠heightETA 2893-2 is 0.5 mm thinner (4.1 mm vs 4.6 mm): the dial and hands sit lower, so a spacer or a different stem height may be needed.
    • ≠functionsETA 2893-2 adds a 24-hour hand: it needs a dial and hand set made for it.

  6. SW200-1 → SW220-1

    Fits with changes· not confirmed
    • =diameterSame movement diameter: 26 mm.
    • ≠heightSW220-1 is 0.45 mm taller (5.05 mm vs 4.6 mm): check the room under the crystal and the case back; the hands sit higher.
    • ≠dateSW220-1 adds a day wheel: a date-only dial hides it, and the crown gets a day-setting step.

  7. SW200-1 → SW330-2

    Fits with changes· not confirmed
    • =diameterSame casing diameter: 25.6 mm.
    • ≠heightSW330-2 is 0.5 mm thinner (4.1 mm vs 4.6 mm): the dial and hands sit lower, so a spacer or a different stem height may be needed.
    • ≠functionsSW330-2 adds a 24-hour hand: it needs a dial and hand set made for it.

All SW200-1 figures

Every figure we hold for the SW200-1, with its source. Where sources disagree, each value is shown.

Size

Diameter
26 mm1
Casing diameter
25.6 mm1
Height
4.6 mm1

Running

Jewels
261
Beat rate
28,800 bph1
Power reserve
41 h1
Hands and functions
hours, minutes, centre seconds, date1
Hacking seconds
Yes1
Hand winding
Yes1
Crown turns to full wind
271

Accuracy and care

Lift angle
50°1

Fitting: dial, hands, stem

Date window
3H2 · 6H2From Sellita’s manufacturer drawing.
Hand holes
hour 1.5 · minute 0.9 · second 0.25 mm1From Sellita’s manufacturer drawing.
Hand height options
8 options: 1, 2 (standard), 3 *, 4 *, 5 *, 6 *, 7 *, 8 *2From Sellita’s manufacturer drawing.
Dial feet
2:24, 8:242 · 2:24, 8:242From Sellita’s manufacturer drawing.
Dial centre hole
2 mm2From Sellita’s manufacturer drawing.
Stem part number
031.121.000011
Stem length options
2 options: Normal, Long2From Sellita’s manufacturer drawing.

Origin

Made in
SWISS MADE1

Not published yet

  • Accuracy (maker): not in the documents we read
  • Do not set the date: not in the documents we read

SW200-1 questions

What is the lift angle of the SW200-1?

50°, as Sellita prints it. Enter 50° on a timegrapher to read amplitude correctly for the SW200-1.

Source [1]

How long does the SW200-1 run when fully wound?

About 41 h from a full wind, per Sellita; a full hand wind takes about 27 crown turns.

Source [1]

Does the SW200-1 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 SW200-1?

From the published figures, the closest is the ETA 2824-2: drop-in, not confirmed for every part. ETA 2824-2’s movement diameter matches SW200-1’s casing diameter: 25.6 mm.

What dial, hands and case fit the SW200-1?

Sellita lists hand holes hour 1.5 · minute 0.9 · second 0.25 mm; hand height options 8 options: 1, 2 (standard), 3 *, 4 *, 5 *, 6 *, 7 *, 8 *; dial feet 2:24, 8:24; dial centre hole 2 mm; casing diameter 25.6 mm; date window 3H · 6H. A dial, a set of hands or a case fits the SW200-1 when it matches these figures.

Source [1][2]

More on movements

Sources

Documents checked · Report a wrong number

  1. 1Sellita Watch Co. S.A. — Documentation technique SW 200-1 (DocTec, 28 pp.) · pdf · read
  2. 2Sellita Watch Co. S.A. — Documentation technique SW 200-1 (DocTec, 28 pp.) - read pages 21-26 as images · pdf · read