Breitling
Colt A1731311.BE90.150S— lug 20mm
Breitling Colt A1731311.BE90.150S: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 20mm lug width to preserve the original sartorial balance."
Technical Specifications
Breitling A1731311.BE90.150SThe essential strap measurement.
Browse 20mm straps →A1731311.BE90.150S
Breitling caliber Caliber 17 Hours, Minutes, Seconds | Date
The Heritage
Compatible Straps
Selected for the 20mm lug width of the Colt
FAQ
What is the lug width of the Breitling Colt A1731311.BE90.150S?
The lug width of the Breitling Colt A1731311.BE90.150S is 20 mm. This measurement should be taken with a digital calliper positioned perpendicularly between the two lugs at the point of contact with the strap. The taper towards the buckle end is typically 18 mm.
What is the best strap for the Breitling Colt A1731311.BE90.150S?
The ideal strap for the Breitling Colt A1731311.BE90.150S depends on the intended use. Vegetable-tanned alligator leather complements the instrument-grade stainless steel case elegantly, whilst a high-density NATO nylon strap stays true to the model's military heritage. For formal occasions, shell cordovan in tobacco or burgundy introduces a refined sartorial note.
How do you change the strap on a Breitling Colt A1731311.BE90.150S?
To replace the strap on the Breitling Colt A1731311.BE90.150S, you will need a spring bar tool or a dedicated lug lever. Insert the tool into the spring bar slot, compress the bar laterally to release it from the lug hole, and slide the strap free. Work on a soft surface to protect the case and crystal. The operation takes approximately 2–3 minutes for anyone familiar with watchmaking tools.
Are there aftermarket straps compatible with the Breitling Colt A1731311.BE90.150S?
Yes, the 20 mm lug width of the Breitling Colt A1731311.BE90.150S is a universal standard. Milanostraps.it offers a wide selection of compatible handcrafted aftermarket straps in leather, NATO nylon, rubber and cordovan, all produced using premium materials and hand-finished in Italy.
How long does a leather strap last on the Breitling Colt A1731311.BE90.150S?
The lifespan of a leather strap on the Breitling Colt A1731311.BE90.150S depends on the material and conditions of use. A quality vegetable-tanned calf leather strap, properly maintained and rotated with other straps, typically lasts 2–4 years. Alligator tends to last longer due to the density of its scales; shell cordovan, owing to its compact fibre structure, is among the most durable options. Prolonged exposure to perspiration, water and UV radiation accelerates deterioration.