Strap for Rectangular Complication Stainless Steel / Black - Roman

The lug width of the 01 582 7658 4074-07 5 23 71FC is 23 millimetres, a measurement that is specific and non-interchangeable with standard 22 or 24 millimetre widths. Accurate measurement is essential: using a digital calliper between the inner attachment points of the original lugs guarantees precision to the tenth of a millimetre. This uncommon dimension reflects the intentional proportional relationship between the rectangular case width (approximately 29mm) and the lug, creating the visual harmony that characterises the model's design.

Alligator leather with fine grain represents the most traditional choice for this rectangular timepiece: shades such as dark brown, burgundy, or intense mahogany enhance the case's geometric severity. A vegetable-tanned calf leather offers instead a natural patina that evolves over time, suiting those who appreciate a living finish. For more versatile contexts, a NATO in heavy cotton (sage grey or navy blue) maintains the design's austerity. Structured rubber, lastly, represents a technical solution that does not compromise the rectangular's elegance, thanks to the strength of its geometry.

Strap replacement requires two tools: a spring bar tool and a stable work surface. Position the watch with the case facing upward. Insert the tool's tip into the small side hole of the lug, gently lifting the elastic clip until the original strap's end is freed. Repeat on the other side. For installing the new strap, align the lugs with the holes and compress the elastic clip until you hear a security click. Pay attention to the symmetrical alignment of the lugs, fundamental to the rectangular design. If uncertain, consult a specialised atelier: incorrect pressure can damage the stainless steel case.

Yes, specialised manufacturers produce aftermarket straps compatible with the 23mm lug width. MilanoStraps offers a dedicated collection of 23mm straps featuring options in alligator, vegetable-tanned calf, technical NATO, and structured rubber. However, always verify that the new strap is compatible with the 23 millimetre lug width: a 22 or 24 millimetre strap would cause unacceptable lateral play. The aftermarket strap's construction quality must respect the precision standards of the lug attachment to avoid compromising the case's structural integrity.

A leather strap's lifespan depends on the material and usage patterns. Alligator leather with vegetable tanning, worn daily, maintains structural integrity for 3-5 years, though the patina evolves continuously, making it increasingly distinctive. Natural calf leather suffers faster deterioration if exposed to humid environments, typically lasting 2-3 years of intensive use. Heavy cotton NATO can endure 4-6 years with periodic maintenance. Replacement is recommended when the strap begins to show cracks on the interior lug area or when the buckle (if metal) displays excessive play. Regular maintenance—drying after moisture exposure, conditioning oil every 6-12 months—significantly extends the material's longevity.