Strap for Classima Executives Automatic 39

The Baume & Mercier Classima 8791 features an 18mm lug width, measured from outer edge to outer edge. This dimension is an elegant and proportionate standard for a 39mm case and is fully compatible with bespoke leather, rubber, and fabric straps. Always verify the current strap's internal width or consult the manufacturer's technical specifications to ensure accurate compatibility.

The ideal strap depends on intended use. For formal contexts, we recommend a Mississippi alligator or Nile crocodile in dark brown, black, or burgundy with a steel deployante clasp. For versatile daily wear, Tuscan calf leather with vegetable tanning offers evolving patina and authentic character. Red cordovan shell ensures exceptional durability, whilst a silk NATO strap is perfect for travel and quick changes. Technical rubber provides secure grip in humid environments.

To change the strap, acquire a dedicated spring bar tool to remove and install the lug bars. Position the watch on a protective surface, then gently push the lug bar inward through the lug until the old strap's end releases. Completely remove the lug bar and old strap, then insert the new strap by aligning the holes, reinsert the lug bar, and verify it is securely fixed on both sides. Avoid abrupt movements during this operation to prevent case damage.

Absolutely. The Baume & Mercier Classima 8791 with an 18mm lug width is fully compatible with professional bespoke straps. Milano Straps offers an extensive range of 18mm straps in alligator, calf, shell cordovan, and rubber, customisable in dimensions, initials, and thread colour. Specialist ateliers such as Casati Milano craft bespoke straps with personal leather selection, ensuring superior aesthetic finish compared to standard straps.

Leather strap durability depends on material, frequency of use, and maintenance. Vegetable-tanned calf lasts 2-3 years of daily wear before showing signs of fatigue; alligator and shell cordovan, being more resilient, reach 3-4 years or beyond. Prolonged exposure to moisture, direct heat, and abrasion reduces longevity. To extend life, protect the strap from excessive perspiration, soften periodically with natural balms, and store in a dry environment. Specialist ateliers offer 18-month warranties and leather regeneration services.