Longines · Master Collection

Strap for Master Collection 44 Retrograde Power Reserve Stainless Steel / Silver-Arabic / Alligator XL

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter44 mm
ReferenceL2.716.4.78.5 (aka: L27164785)
FamilyMaster Collection
MovementLongines caliber L697.2 Additional 24 hours Hand (adjustable), hours, minutes, small seconds | date, day
CaseStainless Steel

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 L2.716.4.78.5 (aka: L27164785)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Master Collection L2.716.4.78.5 (aka: L27164785), seen from the bench

The Longines Master Collection mounts the L697.2 caliber with indication of hours, minutes, small seconds and dual time zone via a 24-hour hand. The movement also offers day and date indication. The reference L2.716.4.78.5 belongs to the Swiss brand's classic collection.

Frequently asked questions

What is the lug width of the Longines Master Collection L2.716.4.78.5?

The lug width of the Longines Master Collection L2.716.4.78.5 is 20mm. This measurement is the standard for this model and allows easy access to compatible aftermarket straps. To verify it, measure the space between the two lugs where the strap attaches using a digital calliper.

Which type of strap is most suitable for the Longines Master Collection L2.716.4.78.5?

The ideal strap depends on the intended use. For formal and professional contexts, we recommend alligator or shell cordovan in shades of brown, grey, or burgundy, which enhance the classic character of the model. For light sports activities, a polyamide NATO strap in dark blue or black offers practicality. FKM rubber is perfect for warm climates and rapid style transitions.

How do I change the strap on my Longines Master Collection L2.716.4.78.5?

Removing the strap is straightforward: use a spring bar tool to gently compress the springs on both sides of the case, then slide the strap outward. Insert the new 20mm strap by aligning the lug openings, then slowly release the spring bars until they engage. Ensure the spring bars are fully seated to prevent accidental loss.

Are aftermarket 20mm straps compatible with the Longines Master Collection L2.716.4.78.5?

Yes, all straps with a 20mm lug width are compatible with this Longines model. Milanostraps.it offers a wide selection of 20mm straps in leather, alligator, NATO, and rubber, customisable in length, initials, and thread colour. To ensure maximum comfort, also verify the total strap length in relation to your wrist circumference.

How long does a natural leather strap last on a Longines watch?

A quality natural leather strap has an average lifespan of 2-4 years with moderate daily use. Factors such as exposure to moisture, perspiration, frequency of use, and tanning quality significantly influence longevity. Alligator leather and shell cordovan, being more robust, can last longer. Vegetable-tanned straps develop a desirable patina over time. Artisanal quality straps such as those from Casati Milano include an 18-month warranty and offer regeneration and repair services.

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