Strap for B.Zero1 Two Tone Diamond

The Bulgari B.Zero1 102398 features a lug width of 20 millimetres. This measurement indicates the distance between the two spring bars that attach the strap to the case. It is essential to observe this technical specification to ensure correct fit and stability. Straps wider than 20mm (such as 22mm or 24mm) will not fit into the attachment points, whilst narrower straps will be unstable and loose.

For the 102398, we recommend crocodile leather with natural grain to enhance the tubular case geometry, or quality calf leather treated with vegetable tanning that develops a caramel patina over time. Shell cordovan is excellent for those who appreciate natural lustre and durability. For more casual applications, high-end technical NATO straps or FKM rubber offer resistance whilst maintaining aesthetic integrity. Selection depends on daily usage and personal colour preferences.

Changing the strap on the 102398 requires a spring bar tool (a small forked extractor) to remove the pins from the case lugs—an operation that must be performed with care to avoid scratching the pink gold. Position the tool in the lateral holes of the spring bar, press gently downward to release the internal spring, then withdraw the old strap. Align the new strap's holes with the pins, then use the extractor tool to re-insert the pins into their seats, verifying mechanical engagement.

20mm straps are compatible with many watches featuring the same lug width, however not all 20mm watches are identical: some models may have slightly different attachment points or varying depths. Before purchasing an aftermarket strap, always verify the technical specifications of your watch and consult official documentation. Milano Straps supplies certified compatible straps and can support technical verification for specific models.

Strap longevity depends on material, tanning method, and usage patterns. Quality crocodile or vegetable-tanned calf leather can last 3-5 years with daily wear, developing a patina that increases character. Shell cordovan tends to last longer (4-6 years) due to its density. Ageing is part of the aesthetic: the strap does not deteriorate but evolves. To extend lifespan, avoid prolonged moisture exposure and occasionally apply leather-specific conditioners.