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Seiko watch · Prospex · automatic

Seiko SARB017

The Seiko SARB017 measures 38 mm across and 12 mm thick, with 20 mm lugs.

Sources checked · How we source numbers
Case
38 mm1
3 sources disagree; show every value
  • seller listing 38 mm1
  • secondary source 39.5 mm2
  • secondary source 39 mm3
Lug to lug
not found in our sources yet
Thickness
12 mm1
Lug width
20 mm1
Seiko SARB017: size drawingSeiko SARB017, round case, top and side view to scale: case diameter 38 mm, lug to lug — (unknown), lug width 20 mm, thickness 12 mm, rotating bezel. Bezel, dial and crown size are schematic.lug width 20Ø 38lug to lug —TOPthickness 12SIDE
Seiko SARB017, top and side, to scaleDrawing from data, not a photo · mm

Seiko SARB017 specifications

Case diameter
38 mm1seller listing
3 sources disagree; show every value
  • seller listing 38 mm1
  • secondary source 39.5 mm2
  • secondary source 39 mm3
Lug to lug
not found in our sources yet
Thickness
12 mm1seller listing
Lug width
20 mm1seller listing20 mm watches
Crystal
Sapphire1seller listing
Water resistance
200 m1seller listing
Movement
Seiko 6R151seller listing · automaticSeiko 6R15 specs
Battery
none: the Seiko 6R15 is automatic
Years made
20062secondary source
Case code
not in our data yet
Bezel
rotating2secondary source
Case shape
round2secondary source
Line
Prospex3secondary source

Movement: Seiko 6R15

The Seiko SARB017 runs on the Seiko 6R15, an automatic movement. 1 other model in our base uses it.

Beat rate
21,600 bph4
Power reserve
50 h5
Jewels
234
2 sources disagree; show every value
  • manufacturer 234
  • secondary source 23/246
Accuracy
−15 to +25 s/day4
Hacking seconds
Yes5
Hand winding
Yes4

Battery

none: the Seiko 6R15 is automatic

A mechanical watch has no cell to replace; it needs a service instead.

On your wrist

No lug-to-lug or case length is published for the Seiko SARB017, so there is no fit verdict yet.

Actual size on your screen

Calibrate once with a bank card and the drawing shows the Seiko SARB017 at 1:1, next to a millimetre ruler.

1:1 · not calibrated: sizes are approximate
Seiko SARB017: size drawingSeiko SARB017, round case, top and side view to scale: case diameter 38 mm, lug to lug — (unknown), lug width 20 mm, thickness 12 mm, rotating bezel. Bezel, dial and crown size are schematic.lug width 20Ø 38lug to lug —TOPthickness 12SIDE
Drawing from data, not a photo · mm
01020304050

Seiko SARB017 strap size

Lug width 20 mm1seller listing: a 20 mm strap with 20 mm spring bars fits between the lugs. 62 other models take 20 mm.

Attachment: not published in our sources.

Find your strap length in the watch strap size tool, with the Seiko SARB017 filled in.

On a bracelet? How to remove watch links to size it to your wrist.

20 mm strap: strap diagramTwo-piece strap laid flat (20 mm strap). Lug width 20 mm. Short piece — (unknown), long piece — (unknown). Buckle, keepers and holes are schematic.short —long —lug 20lug 20strap length —20 mm strap
20 mm at the lugs; lengths depend on your wristDrawing from data, not a photo · mm

Same size as the Seiko SARB017

Same movement: Seiko 6R15

Seiko SARB017 questions

What movement is in the Seiko SARB017?

The Seiko SARB017 runs on the Seiko 6R15, an automatic movement.

Does the Seiko SARB017 need a battery?

No. The Seiko SARB017 has no cell to replace: a wound mainspring drives its automatic Seiko 6R15.

What strap size does the Seiko SARB017 take?

The Seiko SARB017 measures 20 mm between the lugs, so it takes a 20 mm strap with 20 mm spring bars. 62 other models in our base share that width.

Find the strap length for your wrist and the Seiko SARB017 in the watch strap size tool.

More Seiko watches

Sources

Documents checked · Report a wrong number

  1. 1Jamtangan — Seiko Alpinist SARB017 Automatic 6R15 (JDM) product page · html · read
  2. 2WatchBase — Seiko SARB017, Mechanical Alpinist Stainless Steel / Green / Strap (WatchBase) · html · read
  3. 3StrapsCo — Seiko Prospex Alpinist SARB017 Lug Width & Strap Size · html · read
  4. 4Seiko Watch Corporation — Automatic Diver's Watch instructions, Cal. 6R15 (EN pages) · pdf · read
  5. 5Seiko Watch Corporation — Automatic Watch instructions, Cal. 6R15 (EN pages) · pdf · read
  6. 6CaliberCorner — Seiko Caliber 6R15 watch movement page · html · read