Strap for Navitimer B01 Chronograph 43 Stainless Steel - Red Gold / Geneva

The lug width of the Breitling Navitimer UB01383A1M1P1 is 22 mm. This measurement refers to the internal distance between the two lugs of the case and determines the correct strap size to fit. It can be verified using a digital calliper placed perpendicular to the watch's longitudinal axis, within the internal channel between the lugs.

For the UB01383A1M1P1 with its Red Gold and stainless steel bi-colour case, the most suitable options are alligator leather with vegetable tanning — whose scale texture complements the case's luxury — or shell cordovan for a smooth, compact surface that develops a natural patina over time. For sporting use, calf leather or vulcanised rubber offers moisture resistance without compromising the overall aesthetic. A deployant clasp in steel or gold IP is recommended for wrist stability and to protect the leather from buckle deformation.

To replace the strap, the spring bars securing it to the case lugs must be removed. Use a fine-tipped springbar tool, inserting the tip into the lateral notch of the spring bar, compressing it and sliding it free from the lug. The operation should be carried out on a soft surface to avoid scratching the case. The new 22 mm strap is fitted in reverse order. If in doubt, it is advisable to entrust the task to a watchmaker or specialist atelier.

Yes. Any strap with a 22 mm attachment width is physically compatible with the Breitling Navitimer UB01383A1M1P1, provided the spring bars are of appropriate thickness for the lugs. Milano Straps offers a selection of handcrafted 22 mm straps — in alligator, calf, shell cordovan and rubber — produced specifically as quality aftermarket alternatives for manufacture-grade watches. Dimensional compatibility is determined solely by the lug width, regardless of the strap maker.

The lifespan of a leather strap depends on the material, care and frequency of use. A high-quality vegetable-tanned alligator strap, kept away from water and excessive perspiration, typically lasts between three and five years with regular wear. Shell cordovan, owing to its dense and compact structure, tends to last longer and develops an improving patina over time. Periodic application of a neutral conditioner free from silicones significantly extends the leather's life. Milano Straps provides an 18-month warranty covering manufacturing defects.