Strap for Lange 1 20th Anniversary Pink Gold

The lug width of the A. Lange & Söhne Lange 1 101.064 is 20 mm. This measurement corresponds to the internal distance between the two lugs of the rose gold case and is the standard for watch straps compatible with this model. To verify compatibility, measure with a ruler the distance between the inside of the two lugs: it must be exactly 20 mm.

For the A. Lange & Söhne Lange 1 101.064, we recommend alligator as the optimal choice: the regular grain texture creates visual contrast with the polished rose gold case surface, the leather develops deep patina over time, and mechanical resistance exceeds three years of daily use. High-profile alternatives include vegetable-tanned calf (visible ageing and caramel tonality) and shell cordovan (subtle elegance and selective durability).

The strap is changed using a spring bar: remove the old strap by sliding the spring bar towards the centre of the case with an appropriate tool (removal pen or dedicated tool), then remove the strap ends from the lug seats. To mount the new strap, insert the ends into the lug seats, press the spring towards the centre until it clicks fully into place. The spring bar diameter for the 101.064 is standard 1.6 mm.

Yes, it is possible to fit a quality aftermarket strap with 20 mm lug width. We recommend choosing straps manufactured by specialised watchmaking houses that guarantee: thickness of 3-4 mm (compatible with the case), quality of leather (alligator, vegetable-tanned calf, shell cordovan), deployant clasp in noble metal (rose gold, yellow gold or stainless steel) that does not compromise the lugs.

The lifespan of a leather strap depends on the material and use. Alligator leather resists 3-4 years of daily use before replacement is needed. Vegetable-tanned calf lasts 2-3 years, characterised by visible and fascinating ageing. Shell cordovan, being denser, can last 4-5 years but is sensitive to moisture and abrasion. Proper maintenance—periodic cleaning and protection from salt water—significantly extends lifespan.