Strap for Classima Executives

The lug width of the Baume & Mercier Classima 8691 is 18mm. This measurement corresponds to the internal distance between the two side lugs of the case and is essential for selecting compatible straps. A strap with a different lug width will not fit properly or will create articulation instability on the wrist. To verify personally, place the watch on a table and measure the internal space between the lugs with a digital calliper.

For the Classima 8691 in pink gold, alligator represents the optimal choice: the geometric structure of the grain naturally complements the warmth of pink gold, creating durable aesthetic harmony. Calf leather with vegetable tanning and satin finishes constitutes a contemporary alternative, particularly effective in brown or cognac tones. Avoid straps in saturated colours—yellow, red, neon—which would create excessive contrast with the pink gold tonality.

The procedure requires a spring bar tool, an instrument that allows you to compress the small metal side lugs of the case and release the old strap. Place the watch on a soft surface, gently insert the spring bar tool into the lower opening of the lug, push inward until the spring compresses, extract the old strap, release the tool, then slide the new strap under the lug until you feel the click of reattachment. Repeat for the second side. If you are not experienced, consult a professional watchmaker to avoid damaging the case.

Longevity depends on construction quality and material. A high-quality alligator or vegetable-tanned calf strap, with adequate thickness (4–5mm), withstands 3–4 years of continuous daily use before requiring replacement. Alligator ages exceptionally well, developing a patina that enhances aesthetics over time. Expansion and contraction caused by humidity and temperature fluctuations accelerate wear; keep the strap in a dry environment and periodically apply lanolin-based protective creams to extend useful life.

Yes, aftermarket straps of elevated construction quality are fully compatible provided they respect the 18mm lug width. However, select manufacturers specialising in noble materials—genuine alligator, vegetable-tanned calf—and precision construction finishes. Industrial low-cost straps often present mounting errors, irregular stitching, and mediocre materials that aesthetically clash with the watch's pink gold. Specialised artisans succeed in crafting straps that enhance the Classima's construction quality, respecting original proportions and offering customisations in sizes, colours, and monograms.