Strap for Style 34 Stainless Steel / Yellow Gold / Black-Diamond / Strap

The Tudor Style 12303-0012 features a 20mm lug width, a specific measurement that requires straps manufactured to this exact dimension. Measurement should be taken between the inner edges of the case's lateral lugs using a digital calliper for accuracy.

For a two-tone gold and steel watch like the 12303-0012, an alligator strap in cognac brown or vegetable-tanned leather represents the most refined choices. Alligator emphasises the yellow gold component, whilst vegetable-tanned leather develops a patina over time, creating a watch that matures aesthetically.

To change the strap, obtain a spring bar tool and work in well-lit conditions. Locate the small metal pins at the strap ends, gently compress the pin with the tool to release the strap, remove the old strap and insert the new one, ensuring the pin clicks fully into place. Always verify that the new strap is 20mm to prevent mechanical play.

Yes, provided the aftermarket strap is constructed for 20mm lugs. Using straps with different measurements (22mm, 19mm) compromises both aesthetics and mechanical security. Compatible straps in leather, rubber and fabric are available from specialists who work bespoke for this specific width.

A quality leather strap (alligator, vegetable-tanned calf, shell cordovan) provides an average lifespan of 2-3 years with daily use, extendable to 4-5 years with regular rotation between straps. Longevity depends on ambient humidity, frequency of use and care: periodic conditioner treatments with natural products and air-drying significantly extend leather lifespan.