Bulgari
Octo 102031— lug 30mm

The lug width of the Bulgari Octo 102031 is 30 millimetres. This measurement is taken from the inside edge of one spring bar to the other and corresponds to the specific proportions of the octagonal case. Always verify this measurement before ordering a compatible strap to avoid purchasing errors.

We recommend natural alligator for the 102031, as it respects the model's hybrid character – both sporty and elegant. Neutral tones (black, dark brown, grey tortoiseshell) dialogue with the octagonal geometry without competing for attention. Vegetable-tanned calf leather represents a valid alternative for those who prioritise the tactile history of the material.

The 102031 uses standard spring bars (baionetta). Use a dedicated tool (spring bar tool) to gently disengage the spring from the lug, then insert the new strap ensuring the spring clicks firmly into both seats. Avoid forcing the movement to prevent damage to the strap or the case lugs.

A natural alligator or vegetable-tanned calf strap typically lasts 3-5 years with daily wear, provided proper maintenance: protection from standing water, gentle detergents and periodic conditioning. The leather patinas over time, transforming into an increasingly beautiful surface. Natural rubber straps offer longer durability (5-7 years) but lower aesthetic compatibility with the Octo.