Strap for Master Collection 40 Chronograph Calendar Stainless Steel / Silver

The lug width of the Longines Master Collection L2.673.4.71.2 is 21mm. This measurement, less common than standard 20mm or 22mm widths, requires precise strap dimensioning. Correct measurement: distance between the inner centres of the pins on both sides of the case.

For the L2.673.4.71.2, we recommend alligator for formal elegance, shell cordovan for marked patina development over time, vegetable-tanned calf leather for balanced versatility, or technical rubber for sports robustness. Material choice depends on intended use and personal aesthetic preference. Each material imparts distinct character to the chronograph.

Strap replacement requires extracting the lateral pins using a spring bar tool. Position the tool beneath the pin, press gently to compress the internal spring, extract the pin. Align the new strap's holes and reinsert the pin until it clicks into place. Avoid excessive force to prevent damaging the lugs. If inexperienced, consult a qualified service centre.

The L2.673.4.71.2 accepts exclusively 21mm width straps. Generic aftermarket straps in 20mm or 22mm are incompatible. Bespoke tailored solutions guarantee precise fit, controlled material quality, and finishes coherent with Longines standards. MilanoStraps provides dedicated collections for this specific lug width.

A quality leather strap (alligator, cordovan, calf) worn daily lasts 3-5 years before requiring replacement. Lifespan depends on material type, tanning method, maintenance (solar exposure, humidity, perspiration), and frequency of use. Shell cordovan and alligator offer superior longevity compared to common calf leathers. Rubber or textile straps require replacement every 2-3 years.