Serial number dating / Sigma
Sigma serial number lookup
Find the year a Sigma was built, read from Sigma’s own numbering scheme.
Can't read a digit? Type ? in its place. Looked-up serials are kept, never tied to you. How it works
Type the serial or code from the instrument. We read it as you type.
Cross-check with a pot code
The number stamped on a potentiometer inside the guitar. It dates the part, not the whole instrument.
Example Sigma serials and how they read
Made-up serials in each of Sigma’s formats, read by the dater above.
| Serial | Reads as | Format |
|---|---|---|
| 73012345 | 1973 | Japanese 7X0 pattern (unconfirmed) |
How Sigma serials date
- Sigma-Martin USA (Nazareth)
- Japanese 7X0 pattern (unconfirmed)
More on Sigma serial numbers
How sure is it
Every result carries its confidence. Treat the year as a strong guide, not proof: a serial can be replaced, a neck and body can be from different years, and reissues copy old numbering. For anything that matters, confirm the year against the neck date, the pot codes.
Other brands
This is one of many brands the serial number dater covers.