Technical Archive

Longines
Record L2.921.4.56.6— lug 20mm

Longines Record L2.921.4.56.6: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Record Heritage Chronograph Stainless Steel / Black / Bracelet

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Longines L2.921.4.56.6
Lug Width
20 mm

The essential strap measurement.

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Reference

L2.921.4.56.6

Movement

Longines caliber L895.4 Hours, Minutes, Small Seconds | Chronograph

The Heritage

The Record represents Longines' chronographic offering, equipped with the automatic caliber L895.4. The movement provides hours, minutes, small seconds and chronograph functions. The case features standard 20mm lugs for the strap.

FAQ

What is the lug width of the Longines Record L2.921.4.56.6?

The Longines Record L2.921.4.56.6 features a lug width of 20mm. This dimension was deliberately chosen to maintain the elegant, tapered proportions of the case and ensure visual lightness at the wrist. When selecting an aftermarket strap, verify not only the width but also the thickness and curvature of the lug to guarantee perfect compatibility.

Which strap material is recommended for the Record L2.921.4.56.6?

We recommend natural alligator or vegetable-tanned calf leather for the Record. Alligator offers a fine, regular grain that harmonises elegantly with the satin-finished steel case whilst maintaining wrist lightness. Vegetable-tanned leather develops a personal patina over time, enriching the watch aesthetically. Shell cordovan suits those seeking enhanced humidity resistance. We advise against NATO straps and textile options, as their visual width tends to overwhelm the tapered proportions of this model.

How do you change the strap on the Longines Record L2.921.4.56.6?

Strap replacement requires a spring bar tool. Place the watch on a soft surface, locate the small hole on the inner side of each lug, insert the tool to push the spring bar inward, and slide off the old strap. Repeat on the other lug. When installing the new strap, ensure the spring bars seat completely into the lugs, creating a straight line across the case. Check for proper alignment before wearing.

Which aftermarket straps are compatible with the Longines Record L2.921.4.56.6?

The Record L2.921.4.56.6 requires straps with a 20mm lug width. We recommend exclusively custom straps crafted by specialist artisans, with curves and thickness calculated for this model's specific proportions. Excessively thick straps would compromise the constructive lightness the Record embodies. milanostraps.it offers a curated selection of 20mm-compatible straps, customisable in material, colour, initials and stitching thread, with swift delivery.

How long does a leather strap last on the Longines Record L2.921.4.56.6?

Longevity depends on leather quality, intensity of use and maintenance discipline. A quality alligator or calf strap, worn daily in dry conditions, maintains structural integrity for 3–5 years. Vegetable-tanned leather, whilst developing compelling patina, may exhibit visible wear after 2–3 years of intensive use. Shell cordovan, owing to its density, can last 7–8 years. Regular maintenance—gentle cleaning and biannual conditioning—significantly extends strap lifespan.