Strap for Classic Field Desert Sand

The lug width of the B31SBN2BE1 is 22 millimetres. This measurement represents the distance between the two lugs of the case where the strap attaches. To verify it, use a digital calliper to measure directly on the case. Ensure you do not confuse lug width with the case diameter (38mm in this case) or the overall length of the strap.

The choice depends on intended use and aesthetic preference. For daily and formal wear, we recommend a high-quality vegetable-tanned leather strap, which develops a natural patina over time. For a more authentic military aesthetic, a NATO strap in wax-dyed canvas is ideal. If you anticipate use in humid or extreme environments, a vulcanised rubber strap is the most practical option. Tuscan alligator leather offers a balance between elegance and durability, with distinctive natural texture.

To change the strap, you will need a spring bar removal tool. Position the watch on a soft surface to prevent scratches. Gently insert the tool's tip under the spring bar terminal, pushing downward to release the pin. Once freed, the old strap will fall away naturally. Repeat on the other lug. To install the new strap, compress the spring bar slightly with the tool, insert the pin into the watch case lugs, and release. Verify that the strap is properly aligned before wearing the watch.

Bausele supplies the B31SBN2BE1 with a field-grade standard strap, typically in cordura or robust canvas. However, Bausele does not produce an extensive range of proprietary aftermarket straps. To expand aesthetic and functional options, it is advisable to consult artisanal manufacturers specialising in 22mm lug width straps—available in vegetable-tanned leather, alligator, NATO, and vulcanised rubber of construction quality comparable to the watch itself.

A high-quality vegetable-tanned leather strap, with routine maintenance, typically lasts 3–5 years under moderate daily wear conditions. Longevity depends on exposure to moisture, direct sunlight, perspiration, and chemical agents. Leather tends to dry with age; occasional applications of leather-specific balm (free of mineral oils) slow this degradation. Signs of wear—thinning, minor creases, discolouration—do not compromise functionality but testify to authentic use of the watch. At this point, a new 22mm strap fully restores the appearance of the B31SBN2BE1 whilst maintaining its original technical identity.