Strap for Hampton Classic XL Automatic Open Balance

The Baume & Mercier Hampton 8818 is equipped with 18-millimetre lugs. This measurement is critical for aftermarket strap compatibility. To verify the dimension accurately, use a digital calliper positioned perpendicularly across the lugs at their narrowest point. Any compatible strap must have precisely 18mm width at the attachment point.

Genuine alligator is the most elegant choice for this model, as the natural texture of the leather mitigates the rigid geometry of the tonneau case. However, vegetable-tanned calf leather in dark shades—black, brown, burgundy—creates an aesthetic dialogue coherent with the watch's Art Déco heritage. Shell cordovan represents the most refined option for those appreciating natural patination and deep colour development over time.

Strap replacement requires specialised spring bar removal tools. Insert the spring bar tool into the lateral hole of the upper lug to compress the internal spring, then extract the bar from its seat. Repeat for the lower lug. Proceed in reverse order for the new strap installation, ensuring the strap slots align perfectly with the lugs before releasing tool pressure.

Yes, provided the strap is specifically designed for 18-millimetre lug width. Not all aftermarket straps are universal: dimensional precision is paramount. Specialist suppliers such as Milano Straps guarantee correct compatibility and offer customisable solutions in material, colour, and stitching thread to meet your aesthetic standards.

A high-quality leather strap, such as alligator or vegetable-tanned calf, maintains structural and aesthetic integrity for 3-5 years of moderate daily wear. Longevity varies based on wear patterns, humidity exposure, and cleaning frequency. A shell cordovan strap, if properly maintained, can exceed 5 years and improve in patina with age. Casati Milano's 18-month warranty covers manufacturing defects.