Strap for Navitimer Rattrapante Stainless Steel / Panamerican Bronze / Calf / Pin

The Breitling Navitimer AB031021/Q615/443X/A20BA.1 has a lug width of 24mm. This measurement corresponds to the 45mm case diameter and should be verified with a digital calliper at the point where the strap meets the case to ensure a precise fit.

For a 45mm steel Navitimer rattrapante, the most suitable options are: alligator belly for formal occasions, vegetable-tanned calf leather for everyday wear with natural patina development, shell cordovan for maximum longevity and moisture resistance, vulcanised rubber for sport use. A ballistic nylon NATO strap remains the most historically coherent choice given the model's aviation heritage.

The Navitimer strap is secured by spring bars connecting the strap to the lugs. Using a thin-tipped spring bar tool, compress the spring bar on both sides and slide the strap free. Take care not to scratch the steel lugs when working with the original Breitling spring bars. The new 24mm strap is fitted in reverse order by compressing the spring bars and engaging them into the lug holes.

Yes. Any standard spring bar 24mm strap is compatible with the Navitimer AB031021/Q615/443X/A20BA.1. Milano Straps offers a curated selection of handcrafted Italian 24mm straps in alligator, calf leather, shell cordovan, rubber and NATO, available in customisable lengths with a choice of pin buckle or deployant clasp.

Longevity depends on the material and conditions of use. A vegetable-tanned calf strap typically lasts 18 to 36 months with daily wear. Quality alligator, maintained with a silicone-free leather cream, frequently exceeds 3 to 5 years. Shell cordovan is the most durable of all leathers: its dense, fibre-free structure resists wear and moisture far better than standard calf. Avoiding prolonged contact with water and perspiration significantly extends the service life of any leather strap.