Strap for Premier Chronograph 42 Stainless Steel / Black / Nubuck Black / Tang

The Breitling Premier A13315351B1X2 has a lug width of 20mm. This measurement can be confirmed using a digital calliper by measuring the internal distance between the two lugs, parallel to the caseback. Any strap with a 20mm attachment is compatible with this reference.

For the steel Premier A13315351B1X2, a semi-gloss alligator strap in tobacco brown or a vegetable-tanned calf leather strap in cognac are the most coherent choices, complementing the watch's formal-sport character. Shell cordovan is recommended for those seeking superior resistance to deformation over time. For more dynamic use, a technical nylon NATO or vulcanised rubber strap are sound alternatives without compromising the chronograph's readability.

To replace the strap, you will need a fine-tipped spring bar tool. The Premier's lugs accept standard 20mm spring bars, typically 22–24mm in length depending on lug thickness. Remove the strap on the hour side first by pressing the spring bar inward towards the lug, then repeat on the minute side. The operation does not require case disassembly and does not affect the watch's water resistance.

Yes. Any strap with a 20mm attachment is geometrically compatible with the Premier A13315351B1X2. Straps with slightly curved ends are advisable to follow the lug curvature and ensure a clean fit without visible gaps between strap and case. Milanostraps.it offers a curated selection of handcrafted 20mm straps in premium materials, available in standard lengths or made to measure.

The lifespan of a leather strap depends on the material and frequency of use. A quality vegetable-tanned calf strap typically lasts 18–36 months with daily wear, developing a distinctive patina over time. Alligator leather, owing to the scale structure, offers better resistance to moisture and mechanical wear, lasting 3–5 years when not systematically exposed to water. Shell cordovan surpasses both in resistance to deformation. Casati Milano's 18-month guarantee on manufacturing defects provides added assurance from the point of purchase.