Longines · Master Collection

Strap for Master Collection 40 Date Stainless Steel / Silver-Roman / Alligator / DFS

Takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width21 mm
Case diameter40 mm
ReferenceL2.793.4.96.6 (aka: L27934966, L001156128)
FamilyMaster Collection
MovementLongines caliber L888.3 Hours, Minutes, Seconds | Date
CasePink Gold

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Master Collection L2.793.4.96.6 (aka: L27934966, L001156128)

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Master Collection L2.793.4.96.6 (aka: L27934966, L001156128), seen from the bench

The Longines Master Collection features the automatic caliber L888.3 with hour, minute, second and date indications. The watch has 21mm lug width for the strap. The movement offers the essential functions in a three-hand configuration with date.

Frequently asked questions

What is the lug width of the Longines Master Collection L2.793.4.96.6?

The Longines Master Collection L2.793.4.96.6 features a lug width of 21 mm. This measurement is taken between the internal spurs (lugs) of the case using a digital calliper. Verifying this specification is essential before purchasing an aftermarket strap, as structural compatibility depends on this precise dimension.

What is the best strap material for the Longines Master Collection L2.793.4.96.6 in pink gold?

For the pink gold Master Collection, an alligator strap in honey or tobacco hue amplifies the warmth of the metal and creates natural aesthetic harmony. Alternatively, vegetable-tanned calf leather develops a patina over time, emphasising the sophistication of the case. If a more structured construction is preferred, shell cordovan in burgundy or black maintains elegance whilst preserving distinct tactile definition.

How do you change the strap on the Longines Master Collection L2.793.4.96.6?

Strap replacement on this model is accomplished by removing the spring bars that secure the strap to the case lugs. Use a spring bar tool (a specific lever device) to gently compress the internal spring and slide the bar out. Work on a soft surface (cloth pad) to prevent scratches. Once the bar is removed, the previous strap releases. Align the new strap holes with the lugs and reinsert the spring bar until it locks with an audible click.

Is there an aftermarket strap compatible with the Longines Master Collection L2.793.4.96.6?

Yes. Any strap manufactured with a 21 mm lug width is structurally compatible with the Master Collection L2.793.4.96.6. Aesthetic compatibility, however, depends on personal preference: materials such as alligator, calf, shell cordovan, vegan leather, and rubber are available in this width. Milanostraps.it offers a complete catalogue of 21 mm straps, customisable in dimensions, colours, and stitching finishes.

How long does a leather strap last on the Longines Master Collection?

The lifespan of a leather strap depends on material quality and usage patterns. A high-quality alligator or vegetable-tanned calf maintains structural and aesthetic integrity for 3–5 years of moderate daily wear. Shell cordovan can exceed 7 years with proper care. The patina that develops (gradual darkening, controlled micro-creasing) is a desirable characteristic. To extend longevity, rotate different straps, avoid prolonged exposure to moisture and direct sunlight, and periodically apply a conditioner formulated for noble leathers.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only