Strap for Big Crown Chronograph Stainless Steel / Black

The lug width is 21 millimetres. This measurement is taken horizontally between the lugs, excluding the watch case body. This specific proportion of the Big Crown allows for the use of a wide range of artisanal straps, from full-grain leather to vulcanised rubber.

The choice depends on the intended use. An authentic alligator strap enhances the formal character of the case, whilst vegetable-tanned calf leather ages naturally over time. Vulcanised rubber represents the sporty and practical solution, being water-repellent and durable. Woven NATO straps offer colour versatility and historical aesthetic appeal.

The strap is replaced via removable lugs on the case. Using a simple extraction tool (spring bar tool) provided with many straps or available from specialist retailers, insert the tip into the small hole of the lug, compress the internal spring and extract the bar. The procedure takes a few seconds and requires no particular technical skill.

Yes, any strap with a 21-millimetre lug width is compatible with the Big Crown 01 674 7567 4064-07 5 21 53. High-quality artisanal straps, whether in leather or synthetic materials, fit perfectly onto the case's original bars without requiring modification or adaptation.

A quality leather strap, subject to routine maintenance (periodic cleaning and conditioning), lasts between 3 and 5 years of daily wear. Longevity depends on climatic conditions (humidity accelerates wear), frequency of use and tanning techniques employed. Vegetable-tanned leathers age more elegantly than modern leathers, developing a sought-after patina that visually extends perceived quality over time.