Widths differ across this line. Enter or pick your exact reference to get its width.
20 or 22 mm
Verification: Listed by the maker for ref. SSA347J1
Attachment: spring bars
40.5 to 42 mm cases · 2015 to 2017
Official page: Seiko
Report an errorIndicative information. Check your watch before buying a strap: whatsmylugwidth.com is not responsible for an incorrect size.
Seiko Premier Automatic 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.
Premier Automatic
Lug width: 20 mm
Source: Not yet verified Attachment: Spring barsCase size: 42 mmYear: 2017Silver dialCase material: Steel
Premier Automatic Blue
Lug width: 20 mm
Source: Maker Attachment: Spring barsCase size: 40.5 mmYear: 2017Blue dialCase material: Steel
Premier Automatic Open Heart
Lug width: 20 mm
Source: Not yet verified Attachment: Spring barsCase size: 41 mmYear: 2017Blue Open dialCase material: Steel
Premier Automatic Retrograde
Lug width: 22 mm
Source: Not yet verified Attachment: Spring barsCase size: 42 mmYear: 2015White Roman dialCase material: Steel
Premier Automatic Retrograde Gold
Lug width: 20 mm
Source: Not yet verified Attachment: Spring barsCase size: 42 mmYear: 2015White Roman dialCase material: Yellow Gold
No reference matches.
Seiko Premier Automatic lug width: 20 or 22 mm depending on the reference. The most common is 20 mm (4 of the 5 references with a listed width in our database). Find your exact reference in the table below. The Seiko Premier Automatic ref. SSA347J1 takes 20 mm (listed by the maker).
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.
From our database, which lists 5 Seiko Premier Automatic references, 5 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.
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.
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.