Seiko Identifier: what is my Seiko, and is it original?

Updated 12 October 2026 · Cro Watches, Vilnius

Photograph your watch, or type the numbers from it. The Identifier tells you which Seiko it is, when it was made, what the original Seiko catalogue says about it, and whether the dial and caseback belong together.

1 Add two photos (optional)

DialFront of the watch, straight on, sharp enough to read the small code at 6 o'clock CasebackClose-up of the back. Light from the side makes engraving readable

Read my photos

2 Check the numbers

Filled in from your photos, or type them yourself. Everything is on the watch: the reference and serial on the caseback, the dial code in small print at the bottom of the dial.

Caseback reference Serial number Dial code (at 6 o'clock) Jewels on the dial

Identify my Seiko

The caseback reference and the dial code are tiny, and most of the time they can't be read from a photo. If they don't fill in, look at your watch and type them in by hand. A torch held low at the side helps you read worn engraving.

The result is evidence, not a guarantee. Want a second opinion? Email photos to info@crowatches.com and we'll take a look.