Strap for Style 38 Stainless Steel / Yellow Gold / Fluted / Silver-Diamond / Bracelet

The lug width (ansa width) of the Tudor Style 12513-0009 is 20 millimetres. This measurement indicates the precise distance between the two spring bars of the case and represents the fundamental parameter for purchasing a compatible strap. Accurate measurement with a digital calliper ensures a perfect fit.

For the Tudor Style 12513-0009, black alligator with fine grain is the most natural choice, enhancing the two-tone case finish. Alternatively, vegetable-tanned leather offers more characterful texture, whilst burgundy shell cordovan creates elegant contrast. Navy NATO straps provide daily versatility.

To change the strap on a Tudor Style 12513-0009, obtain a spring bar removal tool. Position the tool on the spring bar from beneath the lug, apply gentle upward pressure to release spring tension, then extract the old strap. Insert the new strap by aligning the spring bars and release the tool to secure. We recommend having a professional watchmaker assist at the first change.

Any strap equipped with a 20mm lug width is fully compatible with the Tudor Style 12513-0009. It is essential to verify technical specifications before purchase, as slightly incorrect dimensions (18mm or 22mm) will not fit properly. Milanostraps exclusively offers compatible straps with prior verification.

The lifespan of a leather strap depends on the tanning quality, frequency of wear and environmental conditions. A quality alligator or shell cordovan, worn regularly (3-4 days weekly), maintains structural integrity for 3-5 years. Vegetable-tanned leather tends to visibly age (positive patina) within 1-2 years. Exposure to excessive humidity or direct UV rays accelerates wear. Casati Milano guarantees 18 months on all bespoke straps.