Strap for Style 38 Stainless Steel / Yellow Gold / Black / Bracelet

The Tudor Style 12503-0003 features a lug width of 20mm. This dimension is standard across the Style collection and is compatible exclusively with 20mm straps. To verify, measure the internal distance between the two case lugs with a digital calliper—the result will be exactly 20mm.

For the 12503-0003, we recommend alligator leather in cognac brown or dark brown tones, which enhances the warmth of the yellow gold bi-colour case. Alternatively, vegetable-tanned calf offers natural patina development, while shell cordovan in burgundy creates striking contrast. For daily wear, EPDM rubber with fine grain texture maintains elegance without compromise.

Strap replacement requires a spring bar tool: insert the tip into the lug slot, gently lift to compress the spring, and slide out the old strap. Repeat on the other side. Insert the new 20mm strap into the terminals and release the spring. If inexperienced, consult a professional watchmaker to avoid damage.

No, this is not advisable. The 12503-0003 has 20mm lugs: whilst a 22mm strap may physically fit, it creates visible gaps between case and strap, resulting in misalignment and an inelegant appearance. Additionally, it stresses the lug terminals beyond design intent. Always use 20mm straps to maintain Tudor's intended proportions.

A quality leather strap (alligator, calf, cordovan) typically lasts 3–5 years with regular wear, extending to 7–10 years if worn occasionally or given periodic maintenance. Longevity depends on humidity exposure, perspiration, and buckle wear. With vegetable tanning, the strap develops natural patina that aesthetically extends its lifespan.