Bulgari
Octo 102859

The lug width of the Bulgari Octo 102859 is 30 millimetres. This measurement represents the distance between the centres of the two attachment pins on the case. It is essential to measure this precisely using a digital calliper, positioning it between the attachment holes, to ensure the strap is proportionate to the case dimensions.

The best strap depends on intended usage. For a classical and refined approach, alligator leather with its natural texture creates an excellent aesthetic dialogue with the case's octagonal geometry. For daily wear, vegetable-tanned calf leather develops a patina that evolves over time, creating material continuity with the titanium case's patina. For sporty contexts or humid environments, a vulcanised rubber strap of watch-grade quality guarantees superior resistance and durability over time.

Yes, any strap with a 30-millimetre lug width is compatible with the Bulgari Octo 102859, regardless of manufacturer. Compatibility is determined solely by lug width and the use of standard pins. Custom-made artisanal straps further permit personalisation of width, material, colour, initials, and stitching thread, creating a solution entirely tailored to your aesthetic preferences and wearability.

The lifespan of a leather strap varies based on material, tanning quality, and frequency of wear. A high-grade watch strap in alligator or calf leather, vegetable-tanned, typically lasts 3–5 years with daily use, developing a unique patina over time that increases aesthetic value. Durability also depends on exposure to ultraviolet rays, humidity, and perspiration: a strap used in humid environments will age more rapidly. A vulcanised rubber strap maintains structural integrity for 5–7 years, showing less material degradation than leather. The standard warranty for artisanal straps is 18 months.