Strap for Chronofighter Oversize

The lug width of the Graham Chronofighter 2CCAU.S01A is 24mm, measured between the outer spring bar pins that attach the strap to the case. This is a specific standard that does not correspond to the more common widths (20mm, 22mm), so compatibility must be carefully verified before purchasing an aftermarket strap.

For the Chronofighter 2CCAU.S01A, we recommend straps in aged tobacco alligator leather or vegetable-tanned calf, which highlight the musculature of the ceramic and carbon case. Alternatively, a NATO strap in black or navy canvas echoes the model's aviator heritage. For intensive sporting use, FKM rubber or silicone offers superior durability and water resistance.

To change the strap, remove the spring bars (lug pins) from the case lugs. Use a dedicated spring bar tool, inserting the tip into the small lateral groove of the pin, then push inward while withdrawing the strap. Align the new strap's holes with the lugs and reinsert the pins until they lock securely. Ensure the strap thickness does not interfere with the case flanks, particularly if the lugs are tightly scoped.

Yes, any artisanal strap with a 24mm lug width is compatible with the Chronofighter 2CCAU.S01A. Always verify that the strap thickness does not exceed the insertion channel in the lugs, especially on cases with recessed flanks. Leather straps with a thickness between 3.0mm and 4.5mm are ideal; above 5mm they may create unsightly friction.

The lifespan of a leather strap depends on the material, daily use, and maintenance. A well-cared vegetable-tanned calf strap typically lasts 3–5 years of regular wear, developing a natural patina that increases aesthetic value. Alligator leather, thanks to its denser structure, can endure 5–8 years. Rubberised leather further extends service life. Factors such as humidity, perspiration, and sun exposure accelerate ageing; rotating multiple straps extends the longevity of each.