Strap for Zeitwerk Yellow Gold

The lug width of the Zeitwerk 140.021 is 20 millimetres. This measurement is taken as the internal distance between the two lugs of the case. Correct measurement is essential to ensure that the strap fits perfectly without excessive play or insertion difficulty.

The best strap for the Zeitwerk 140.021 is alligator leather in black or dark brown with a polished finish, as it does not distract from the readability of the jumping dial. Alternatively, vegetable-tanned calf leather offers a noble patina over time. NATO or rubber straps should be avoided, as their visual structure would compete with the movement.

Changing the strap requires a specialised tool to extract the spring bars that attach the strap to the lugs. It is advisable to consult a professional watchmaker to avoid damage to the case. Compatible 20mm straps are inserted into the case lugs and secured by the spring bars.

Yes, it is possible to use quality aftermarket straps in 20mm size. We recommend choosing straps made by specialised craftsmen, who guarantee finishes and materials suitable for enhancing the quality of a luxury watch such as the Zeitwerk.

A high-quality leather strap (alligator, calf, shell cordovan) worn daily lasts on average 3-5 years with proper maintenance. Lifespan varies depending on intensity of use, climatic conditions and care applied. Rubber or fabric straps may last longer, but are less suitable for this watch.