Strap for 1926 39 Stainless Steel / Silver - Diamond / Strap

The lug width of the Tudor 1926 91550-0007 is 21 millimetres. This is the distance between the two lugs (pins) that attach the strap to the watch case. Accurate measurement is essential before ordering an aftermarket strap to ensure full compatibility and prevent lateral overhang at the case edges.

Alligator leather represents the supreme choice for this model: its symmetrical natural grain, ability to develop a golden patina over time, and structural integrity pair perfectly with the 91550-0007's minimalist design. Vegetable-tanned calf leather is a versatile and more accessible alternative, featuring an understated texture that ages gracefully. Both maintain correct visual proportions on the 39mm case.

Strap replacement requires a Spring Bar Tool (available from Milanostraps). Locate the small metal pins (spring bars) at the lug extremities. Insert the tool into the lateral slot of one spring bar, press inward to compress the internal spring, and extract the pin from the case. Repeat for the opposite side. Thread the new 21mm strap by reversing this process. If you prefer professional handling, Casati Milano atelier offers strap replacement services.

An original Tudor 91550-0007 strap is supplied by Tudor directly, with proprietary construction specifications. A 21mm-compatible aftermarket strap maintains correct lug width but may differ in thickness, leather type, construction method (stitching, inner lining) and finishing. Manufacturers such as Milanostraps offer aftermarket straps with elevated quality standards, often surpassing standard replacement models through premium leather sourcing and artisanal techniques.

A quality leather strap (alligator or vegetable-tanned calf) used daily typically lasts 3–5 years before visible stress appears at the lugs. Environmental humidity, usage frequency and regular maintenance influence longevity. Casati Milano atelier guarantees 18 months on custom-made straps, covering manufacturing defects. Monthly cleaning with a soft dry cloth and occasional protective treatment with natural wax significantly extend strap lifespan.