Strap for LadyMatic Co-Axial 34 Stainless Steel / Red Gold / Diamond / Brown

The lug width of the LadyMatic 425.27.34.20.63.001 is exactly 20mm. This dimension is critical for strap compatibility: it must be measured between the internal points of the two lugs. A digital calliper is the most precise tool. There are no size variants for this model—it is the historic dimension inherited from the original design.

Alligator is the natural choice for the LadyMatic 425.27.34.20.63.001: its geometric grain visually dialogues with the diamonds of the bezel. Vegetable-tanned calf offers more understated elegance. For contemporary versatility, vulcanised rubber with canvas backing creates a sport-elegant tension coherent with the two-tone design. Not recommended: synthetic NATO and fabrics, which diminish the precious effect.

The strap on this model is removed via spring bars: position the watch on a holder with the dial facing upward, locate the recessed pins beneath the lugs (typically steel), and use a gentle pressure extractor to slide them out laterally. Do not apply excessive force—the movement must be fluid. If you prefer to have it done professionally, any specialised watchmaker or the Casati Milano atelier can perform the change in just a few minutes.

Yes, the 20mm straps from Milano Straps are guaranteed compatible with the LadyMatic 425.27.34.20.63.001. The 20mm lug width measurement is universal for this model. Straps are customisable in length, initials and stitching thread colour. All straps carry an 18-month warranty, both stock and bespoke pieces made at the Casati Milano atelier.

Durability varies based on material and maintenance. Alligator, if subjected to periodic maintenance (gentle cleaning with a damp cloth, annual conditioning), has a lifespan of 8-12 years. Vegetable-tanned calf tends to patina more rapidly, developing a desirable aged patina around 3-5 years. Vulcanised rubber typically lasts 5-7 years before requiring replacement. Exposing leather straps to prolonged humidity or direct UV rays accelerates aging.