Strap for Tonda Metropolitaine Stainless Steel / Black / Diamond / Bracelet

The lug width measures 18mm, a dimension specifically engineered for this model to maintain harmonic proportions between the 33.10mm case and the strap. Accurate measurement is taken from inside edge to inside edge of the spring bar attachment points, critical for ensuring proper aftermarket strap compatibility.

Vegetable-tanned calf leather is the optimal choice to maintain aesthetic cohesion with the natural patina development of the stainless steel case. For enhanced durability and pronounced texture, alligator grain in fine weave offers visual sophistication. Canvas NATO straps in premium weave and FKM rubber deliver practical versatility without compromising design integrity.

Strap replacement requires a dedicated spring bar tool. Insert the tool into the groove of the spring bar, apply gentle inward pressure to release the tension, and extract the bar. Reverse the procedure with the new strap, ensuring that the lugs are perfectly aligned and free from excessive tension.

All straps featuring an 18mm lug width are fully compatible. milanostraps.it curates a selection of vegetable-tanned calf, alligator, shell cordovan, NATO canvas, and FKM rubber straps, each rigorously tested to guarantee precise fit and sustained durability across extended use cycles.

A quality vegetable-tanned calf strap maintains optimal functionality for 3-4 years of daily wear whilst developing distinctive patina characteristics. Alligator leather, offering superior resistance to wear, may exceed 5 years of service. Longevity depends on climate exposure, frequency of use, and periodic maintenance with specialised leather conditioners.