The strap size depends on the reference. Yours is engraved on the case back or between the lugs at 6 o'clock.
18 or 20 mm
Verification: Listed by the maker
36 to 40.2 mm cases
Official page: Seiko
Report an errorIndicative information. Check your watch before buying a strap: whatsmylugwidth.com is not responsible for an incorrect size.
Seiko Presage Classic Series 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.
Presage Classic Series HCC002
Lug width: 20 mm
Source: MakerCase size: 38 mmCase material: Stainless steel
Presage Classic Series SPB524
Lug width: 18 mm
Source: MakerCase size: 36 mmCase material: Stainless steel
Presage Classic Series SPB527
Lug width: 20 mm
Source: MakerCase size: 40.2 mmCase material: Stainless steel
No reference matches.
Seiko Presage Classic Series lug width: 18 or 20 mm depending on the reference. The most common is 20 mm (2 of the 3 references with a listed width in our database). Find your exact reference in the table below. The Seiko Presage Classic Series ref. SPB524J1 takes 18 mm (listed by the maker). The Seiko Presage Classic Series ref. HCC002J1 and SPB527J1 take 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 3 Seiko Presage Classic Series references, 3 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.