Strap for Ladybird Colors Phases de Lune White Gold - Diamond / MOP

The lug width of the Blancpain Ladybird 3662-1954-55B is exactly 18 millimetres. This measurement must be taken precisely between the inner angles of the case where the spring bars connect. No variation is permissible, as the strap must sit flush against the profile of the white gold case.

We primarily recommend alligator, which harmonises naturally with the 18-carat white gold case. Cognac-brown alligator creates warmth, whilst black or anthracite grey introduces austere refinement. Vegetable-tanned calf is an excellent alternative for those seeking a patina that develops over time. Shell cordovan offers superior density and natural lustre.

Strap replacement is performed using the spring bars at the case lugs. Using a dedicated spring bar tool, gently press the bar inward and slide the existing strap from its seat. Proceed carefully to avoid scratching the caseback. The new 18mm strap enters the same seat in reverse, ensuring the case shoulders sit uniformly on the spring bars.

Yes, bespoke aftermarket straps are compatible provided they respect the precise 18mm lug width and employ materials of quality consistent with 18-carat gold. A specialist-crafted alligator, calf, or shell cordovan strap often exceeds the construction care of factory-issued straps.

Longevity depends on material and usage intensity. Premium alligator resists 8–10 years of moderate daily use. Vegetable-tanned calf lasts 5–7 years. Shell cordovan, owing to its inherent density, may exceed 12 years. Casati Milano's guarantee covers manufacturing defects for 18 months. Longevity increases significantly if the strap is shielded from excessive moisture and cleaned regularly.