Seiko Brightz

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

9 or 20 mm

Verification: From our database, not yet verified

38 to 43.2 mm cases

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

Collection19 references

Illustration drawn to scale: 43.2 mm case, 20 mm lugs

19 Seiko Brightz references

Seiko Brightz 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.

SAGA227

Brightz

Lug width: 20 mm
Source: Database

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
SAGA239

Brightz

Lug width: 20 mm
Source: Database

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
SAGA254

Brightz

Lug width: 20 mm
Source: Database

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
SAGA257

Brightz

Lug width: 20 mm
Source: Database

Case size: 43.2 mmBlack dialCase material: Titanium

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
SAGA263

Brightz

Lug width: 20 mm
Source: Database

Case size: 43.2 mmBlack dialCase material: Titanium

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
SAGA271

Brightz

Lug width: 20 mm
Source: Database

Case size: 43.2 mmBlack dialCase material: Titanium

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
SAGA293

Brightz

Lug width: 20 mm
Source: Database

Case size: 43.2 mmBlack dialCase material: Titanium

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
SAGA297

Brightz

Lug width: 20 mm
Source: Database

Case size: 43.2 mmCase material: Titanium

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
SAGA303

Brightz

Lug width: 20 mm
Source: Database

Case size: 43.2 mmCase material: Titanium

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
SAGA305

Brightz

Lug width: 20 mm
Source: Database

Case size: 43.2 mmCase material: Titanium

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
SAGN013

Brightz

Lug width: 20 mm
Source: Database

Case size: 38 mmBlack dialCase material: Titanium

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
SDGA002

Brightz

Lug width: 9 mm
Source: Database

Case size: 41.5 mm

Style
dress

Status
Listed in our database, not yet verified
SDGA003

Brightz

Lug width: 9 mm
Source: Database

Case size: 41.5 mm

Style
dress

Status
Listed in our database, not yet verified
SDGA003J

Brightz

Lug width: 9 mm
Source: Database

Black dialCase material: Stainless steel

Style
dress

Status
Listed in our database, not yet verified
SDGC021

Brightz

Lug width: 20 mm
Source: Database

Case size: 40 mmWhite dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
SDGC023

Brightz

Lug width: 20 mm
Source: Database

Case size: 40 mmBlack dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
SDGC027

Brightz

Lug width: 20 mm
Source: Database

Case size: 41 mmBlue dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
SDGC029

Brightz

Lug width: 20 mm
Source: Database

Case size: 40 mmBlack dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified
SZSC002

Brightz

Lug width: 20 mm
Source: Database

Case size: 40.5 mmWhite dialCase material: Stainless steel

Attachment
classic lugs
Style
dress

Status
Listed in our database, not yet verified

FAQ

What lug width does the Seiko Brightz use?

Seiko Brightz lug width: 9 or 20 mm depending on the reference. The most common is 20 mm (16 of the 19 references with a listed width in our database). Find your exact reference in the table below. These widths come from our database and are not yet verified.

Do all Seiko Brightz references take the same strap?

No. 2 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 Seiko Brightz lug widths come from?

From our database, which lists 19 Seiko Brightz references, 19 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 Seiko collections

All 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

Take the strap off, or look at the back of it: many straps print their width.
Measure the inside gap between the lugs with a caliper or a millimetre ruler.
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.