Grand Seiko Sport

The strap size depends on the reference. Yours is engraved on the case back or between the lugs at 6 o'clock.

19 to 23 mm

Verification: Listed by the maker for ref. SBGA403, SBGA405 and 23 more

39 to 44.2 mm cases · 2014

Filter references by lug width

Indicative information. Check your watch before buying a strap: whatsmylugwidth.com is not responsible for an incorrect size.

Collection27 references
23 mm
Illustration drawn to scale: 40.5 mm case, 23 mm lugs

27 Grand Seiko Sport references

Grand Seiko Sport references in our database. Each card says where its width comes from: listed by the maker (linked to the maker's page in the details), two independent sources agree, or listed in our database and not yet verified by us.

  • SBGA391

    Sport

    Lug width: 22 mm

    Source: Maker

    Case size: 44.2 mmCase material: Stainless steel

    Attachment
    classic lugs
  • SBGA403

    Sport

    Lug width: 23 mm

    Source: Maker

    Attachment
    classic lugs
  • SBGA405

    Sport

    Lug width: 23 mm

    Source: Maker

    Attachment
    classic lugs
  • SBGA481

    Sport

    Lug width: 23 mm

    Source: Maker

    Attachment
    classic lugs
  • SBGC253

    Sport

    Lug width: 23 mm

    Source: Maker

    Attachment
    classic lugs
  • SBGE245

    Sport

    Lug width: 21 mm

    Source: Maker

    Case size: 44 mmCase material: Stainless steel

    Attachment
    classic lugs
  • SBGE253

    Sport

    Lug width: 20 mm

    Source: Maker

    Case size: 40.5 mmBlack dialCase material: Stainless steel with ceramic bezel

    Attachment
    classic lugs
  • SBGE257

    Sport

    Lug width: 20 mm

    Source: Maker

    Case size: 40.5 mmCase material: Stainless steel with ceramic bezel

    Attachment
    classic lugs
  • SBGE277

    Sport

    Lug width: 21 mm

    Source: Maker

    Case size: 44 mmBlack dialCase material: Stainless steel

    Attachment
    classic lugs
  • SBGE295

    Sport

    Lug width: 21 mm

    Source: Maker

    Case size: 44 mmGreen dialCase material: Stainless steel

    Attachment
    classic lugs
  • SBGE307

    Sport

    Lug width: 23 mm

    Source: Maker

    Attachment
    classic lugs
  • SBGH257

    Sport

    Lug width: 23 mm

    Source: Maker

    Attachment
    classic lugs
  • SBGH289

    Sport

    Lug width: 22 mm

    Source: Maker

    Case size: 43.8 mmBlue / Navy dialCase material: Stainless steel

    Attachment
    classic lugs
  • SBGH291

    Sport

    Lug width: 22 mm

    Source: Maker

    Case size: 43.8 mmBlack dialCase material: High-Intensity Titanium

    Attachment
    classic lugs
  • SBGJ229

    Sport

    Lug width: 23 mm

    Source: Maker

    Attachment
    classic lugs
  • SBGJ239

    Sport

    Lug width: 21 mm

    Source: Maker

    Case size: 44.2 mmGreen dialCase material: Stainless steel

    Attachment
    classic lugs
  • SBGJ277

    Sport

    Lug width: 21 mm

    Source: Maker

    Case size: 44.2 mmBlack dialCase material: Stainless steel

    Attachment
    classic lugs
  • SBGM245

    Sport

    Lug width: 20 mm

    Source: Maker

    Case size: 40.5 mmBlue / Navy dialCase material: Stainless steel

    Attachment
    classic lugs
  • SBGM247

    Sport

    Lug width: 20 mm

    Source: Maker

    Case size: 40.5 mmGreen dialCase material: Stainless steel

    Attachment
    classic lugs
  • SBGN027

    Sport

    Lug width: 19 mm

    Source: Maker

    Case size: 39 mmBlack dialCase material: Stainless steel

    Attachment
    classic lugs
  • SBGN029

    Sport

    Lug width: 19 mm

    Source: Maker

    Case size: 39 mmBlue / Navy dialCase material: Stainless steel

    Attachment
    classic lugs
  • SBGP015

    Sport

    Lug width: 20 mm

    Source: Maker

    Case size: 40 mmCase material: Stainless steel with ceramic bezel

    Attachment
    classic lugs
  • SBGV245

    Sport

    Lug width: 20 mm

    Source: Maker

    Case size: 40 mmCase material: Stainless steel

    Attachment
    classic lugs
  • SLGA001

    Sport

    Lug width: 23 mm

    Source: Maker

    Attachment
    classic lugs
  • SLGC009

    Sport

    Lug width: 23 mm

    Source: Maker

    Attachment
    classic lugs
  • SBGC201

    Sport Spring Drive Chronograph GMT

    Lug width: 21 mm

    Source: Database

    Case size: 43 mmYear: 2014White dialCase material: Steel

    Attachment
    classic lugs
    Movement
    Spring Drive Chronograph
    Caseback
    Screw steel
    Production
    2014, present
    Status
    Listed in our database, not yet verified
  • SBGE201

    Sport Spring Drive GMT

    Lug width: 21 mm

    Source: Database

    Case size: 41 mmYear: 2014Blue dialCase material: Steel

    Attachment
    classic lugs
    Style
    pilot
    Movement
    Spring Drive GMT
    Caseback
    Sapphire back
    Production
    2014, present
    Status
    Listed in our database, not yet verified

FAQ

What lug width does the Grand Seiko Sport use?

Grand Seiko Sport lug width: 19 to 23 mm depending on the reference. The most common is 23 mm (9 of the 27 references with a listed width in our database). Find your exact reference in the table below. The Grand Seiko Sport ref. SBGN027 and SBGN029 take 19 mm (listed by the maker). The Grand Seiko Sport ref. SBGE253, SBGE257 and 4 more take 20 mm (listed by the maker). The Grand Seiko Sport ref. SBGE245, SBGE277 and 3 more take 21 mm (listed by the maker). The Grand Seiko Sport ref. SBGA391, SBGH289 and 1 more take 22 mm (listed by the maker). The Grand Seiko Sport ref. SBGA403, SBGA405 and 7 more take 23 mm (listed by the maker).

Do all Grand Seiko Sport references take the same strap?

No. 5 different lug widths appear across the line, often by case size or generation. Check the reference engraved on the case back or between the lugs.

Where do these Grand Seiko Sport lug widths come from?

From our database, which lists 27 Grand Seiko Sport references, 27 of them with a listed width. Each reference card says whether the maker lists the width, two independent sources agree on it, or it is not yet verified.

Other Grand Seiko collections

Help

What is lug width?

The gap between the two lugs that hold the strap, in millimetres. A new strap must match it exactly: 20 mm lugs take a 20 mm strap.

Measure it in 30 seconds

  1. Take the strap off, or look at the back of it: many straps print their width.
  2. Measure the inside gap between the lugs with a caliper or a millimetre ruler.
  3. Round to the nearest whole millimetre. Most watches use 18, 20 or 22 mm.

Strap, quick release or system?

Most watches use spring bars, so any strap of the right width fits. Many smartwatches use their own band system instead, such as Apple Watch bands or Garmin QuickFit.