Rolex
Day-Date 36 118208-0117— lug 20mm

The lug width is 20 millimetres. This dimension requires straps with a specific 20 mm lug width to ensure proper compatibility with the case lugs. Inaccurate measurement between the lug holes may compromise strap attachment.

Alligator crocodilus in brown or burgundy tones is the most harmonious choice: the natural texture enhances the champagne dial, whilst the inherent resistance guarantees durability exceeding seven years. Shell cordovan represents a more versatile alternative with predictable ageing and fascinating patina development.

The strap is secured using two spring bars that pass through the case lugs. Using a 1.5 mm specialised tool, compress the bar to disengage the spring mechanism. For remounting, insert the bar and allow the spring tension to lock it in place. Professional assistance is recommended to prevent case damage.

Yes, provided it features a certified 20 mm lug width with tolerance of 19.8–20.2 mm. Undersized straps cause mechanical stress; oversized ones create lateral movement. Always verify lug thickness against the case lug guide before purchase.

A high-quality leather strap (alligator, aniline calf, shell cordovan) with periodic maintenance lasts 5–8 years in daily use. Durability depends on environmental humidity, cleaning frequency, and tanning method. Vegetable-tanned leather tends to crack sooner than chrome-tanned leather in dry environments.