Strap for Senator Perpetual Calendar Stainless Steel / Silver / Alligator / Folding

The lug width of the Glashütte Original Senator 100-02-22-12-05 is 18 millimetres. This measurement refers to the distance between the two inner sides of the lug at the case shoulder. To verify compatibility with a strap, always measure your watch's lug width using a digital calliper or flexible ruler.

The best strap depends on your intended use. For formal and evening contexts, we recommend premium alligator with fine grain, which enhances the sophistication of the panoramic date window and lunar complication. For versatile daily wear, vegetable-tanned calf leather offers authenticity and develops characteristic patina over time. For maximum practicality without aesthetic compromise, a heavyweight canvas NATO or FKM rubber strap ensures durability and easy changeability.

Position your watch on a stable support with the case lying flat. Identify the lugs (the small lateral supports of the strap that traverse the case). Use a specialised tool to extract the strap pins: insert the tool into the small hole at the inner shoulder of the lug and push gently outward. The pin will slide out, freeing the old strap. Insert the new strap by aligning it with the holes in the lugs, and reinsert the pins with firm pressure until final engagement.

Yes, the Glashütte Original Senator 100-02-22-12-05 uses a standard 18-millimetre lug width, compatible with a vast range of aftermarket straps available on the market. At Milano Straps you will find straps in alligator, calf, vegetable-tanned leather, NATO and FKM rubber, all available with rapid shipping and online customisation options. Choosing a premium-quality strap does not compromise the warranty if the change is executed correctly without damaging the lugs.

The lifespan of a leather strap depends on the quality of the material, frequency of use and environmental conditions. A premium alligator or calf strap, worn daily, has an average lifespan of 4-7 years before replacement is required. A vegetable-tanned calf strap tends to wear more quickly (3-5 years of intense use) but develops fascinating patina. Exposure to moisture, direct heat and perspiration accelerates ageing. To extend strap life, alternate it with other models and protect it from extreme environmental factors.