How to Read a Martin Saddle Serial Number

Every Martin saddle carries a code stamped right into it — a string of numbers that tells the full story of that saddle. Once you know how to read it, you'll know exactly what you're looking at, whether it's a saddle on your rack or one you're considering buying.

Before 2015

Saddles built before 2015 use a simpler format. The first six digits are the saddle-specific serial number — unique to that individual saddle. The two digits followed by a W indicate the gullet width. So a stamp ending in 7W means the gullet is 7 inches wide.

2015 to Present

Starting in 2015, Martin updated to a structured format that packs much more information into the stamp. Here's how to read it, segment by segment.

The first two digits are the manufacturing year. The next two identify the model type. Then three digits for seat size, three for gullet width — both encoded as the measurement without the decimal, so 145 means a 14.5" seat and 075 means a 7.5" gullet. The final five digits are the factory serial number unique to that saddle.

Using the example from the graphic: 2571145075 breaks down as year 2025, model Stingray, 14.5" seat, 7.5" gullet.

What Does the Model Number Mean?

The two-digit model code in positions 3 and 4 identifies the saddle line. Here's the full reference:

Tips for Using This Information

• When buying a used Martin saddle, the serial number confirms the model, year, seat size, and gullet — so you know exactly what you're getting before the saddle arrives.
• If you're having warranty or repair work done, have your full serial number on hand. It helps the shop pull the exact build specs for your saddle.
• The gullet width in the code reflects the original factory measurement.
• On older saddles, look for the stamp on the underside of the fender or behind the stirrup leather. On newer models, it's typically found near the billet strap area.

More Martin Saddle Examples

Example 1 26 67 140 070 14847

Year

26 → 2026

Model

67 → FX3

Seat size

140 → 14"

Gullet width

070 → 7"

Factory serial

14847

This is a 2026 FX3 with a 14" seat and 7" gullet.

Example 2 26 01 135 070 14961

Year

26 → 2026

Model

01 → Roper

Seat size

135 → 13.5"

Gullet width

070 → 7"

Factory serial

14961

This is a 2026 Roper with a 13.5" seat and 7" gullet.

Example 3 26 66 135 070 14729

Year

26 → 2026

Model

66 → BTR

Seat size

135 → 13.5"

Gullet width

070 → 7"

Factory serial

14729

This is a 2026 BTR with a 13.5" seat and 7" gullet.