Strap for LadyMatic Co-Axial 34 Red Gold / Diamond / MOP / Bracelet

The lug width of the Omega LadyMatic 425.65.34.20.55.001 is 16 mm. This specification is exclusive to this reference and cannot be interchanged with standard 14 or 18 mm straps. Correct measurement is performed by positioning a digital calliper perpendicular to the spring bar attachment pins protruding from the case.

For this 18-carat rose gold model with diamond settings, alligator leather represents the premier choice. Ideal colours include deep black, chocolate brown, and burgundy red—the latter harmonising with the Sedna Gold case. Vegetable-tanned calf is a valid alternative, developing a patina over time. Avoid NATO straps, rubber, or rigid leathers such as cordovan.

Use a spring bar tool or precision screwdriver to remove the spring bar pins from the lateral attachment holes on the case. Extract the old strap and insert the new one respecting orientation (the passant must face inward). Alternatively, consult Casati Milano for professional assistance: the atelier removes the original bracelet and installs the new strap with precision, ensuring no lateral play.

Compatible aftermarket straps must meet three parameters: 16 mm nominal width, maximum 2.8 mm thickness at the lug end, and 80-85 mm internal length. The 34 mm case diameter requires specific strap proportions. Milano Straps offers customisable 16 mm straps; for bespoke experience, Casati Milano crafts made-to-measure straps with personal leather selection and finishing options.

A quality artisanal alligator or calf strap maintains functional characteristics for 4-6 years of regular use (5-6 days weekly). Longevity depends on care: avoid prolonged exposure to moisture, perspiration, and UV rays. Casati Milano straps include 18-month warranty and may be regenerated through professional cleaning and periodic conditioning. With attentive maintenance, leather develops desirable patina, enhancing the timepiece's aesthetic value.