Strap for Navitimer 1 Chronograph GMT Stainless Steel / Black / Calf / Pin

The lug width (also known as strap width) of the Breitling Navitimer A24322121B2X1 is 24 millimetres. This measurement refers to the linear distance between the two lugs on the case. It is essential to verify this dimension before purchasing an aftermarket strap, as an incorrectly sized strap would result in gaps between the strap and case or potential damage to the lugs.

The best strap material depends on intended use and context. Alligator leather is ideal for formal occasions and creates striking visual contrast with the chronograph dial. Vegetable-tanned calf leather offers an excellent balance between elegance and longevity, developing natural patina over time. Rubber or NATO textile straps provide maximum resistance to daily wear and environmental exposure. Shell cordovan is the choice for collectors seeking pronounced aesthetic evolution, as this equine leather develops distinctive oil-like lustre after months of exposure to sunlight and humidity.

To change the strap, use a spring bar removal tool. Position the watch on a flat surface and insert the tool's tip into the small hole on the spring bar's inner end, then gently lever upwards. Once the spring compresses, remove it completely. Repeat on the opposite side. Next, insert the new strap's spring bars into the lugs and ensure they click fully into place. Avoid excessive force, as the case lugs are precision components that can be damaged.

Yes, any artisanal strap with a 24-millimetre lug width is compatible with the Navitimer A24322121B2X1. Milano Straps offers a comprehensive collection of 24mm straps available online, customisable in length, initials, and stitching thread colour. Additionally, the Casati Milano atelier creates bespoke straps by appointment, allowing personal leather selection and anatomically tailored adjustments.

Strap longevity depends on leather type and usage intensity. A quality alligator strap can last 5-7 years with regular use and proper maintenance. Vegetable-tanned calf leather offers similar longevity but displays visible wear marks (scratches, softening) that many collectors appreciate as part of natural ageing. Shell cordovan is renowned for lasting 10+ years due to the structural density of equine leather. To maximise lifespan, minimise direct moisture exposure and periodically apply conditioning creams formulated specifically for watch leather.