Longines · Master Collection

Strap for Master Collection 44 Retrograde Power Reserve Stainless Steel / Silver-Roman / 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
ReferenceL2.716.4.71.5 (aka: L27164715)
FamilyMaster Collection
MovementLongines caliber L697.2 Additional 24 Hour 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 L2.716.4.71.5 (aka: L27164715)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Master Collection L2.716.4.71.5 (aka: L27164715), seen from the bench

The L2.716.4.71.5 from the Longines Master Collection represents the contemporary evolution of a watchmaking family established in 1954 at the Saint-Imier manufacture. This 44 mm stainless steel model features the L697.2 caliber with unidirectional bezel and dedicated push-button commands. The black dial with white gold applied indices contrasts with silvered sub-dials, creating visual hierarchy without compromising readability. The watch houses a Longines caliber L697.2 with 4 Hz frequency and over four days power reserve.

Frequently asked questions

What is the lug width of the Longines Master Collection L2.716.4.71.5?

The lug width (ansa width) of the Longines Master Collection L2.716.4.71.5 is 20mm. This dimension allows the use of standard straps and bracelets, providing a wide range of customisation options. The distance between lugs is 56mm, an essential parameter for verifying compatibility with aftermarket straps. Measuring your lug width is straightforward: position a ruler or digital calliper between the two horizontal pins that pass through the case. Avoid confusion with the total case width, which is significantly larger.

Which strap pairs best with the Longines Master Collection L2.716.4.71.5?

For the Master Collection L2.716.4.71.5, we recommend straps in dark brown or black alligator, which enhance the colour contrast between the steel case and black dial. The structured grain of alligator reflects the rigorous construction of the model. Alternatively, vegetable-tanned calf leather offers natural ageing that develops patina over time, emphasising the vintage nature of the Master collection. For sporting contexts, a grey anthracite rubber strap maintains legibility without aesthetic compromise. Pure black, whilst traditional, can appear visually flat against the satin case finish.

How do you change the strap on the Longines Master Collection L2.716.4.71.5?

The strap of the L2.716.4.71.5 is secured via springbars. To remove the existing strap: 1) Obtain a dedicated strap tool or thin-blade screwdriver; 2) Insert the tool into the lateral groove of the springbar, gently moving to compress the internal spring; 3) Rotate the springbar outward until it exits the case. Repeat for both sides. To install the new strap, align the holes and reinsert the springbars, compressing slightly until they lock in place. Avoid sharp blows that could scratch the case. Many professional watchmakers offer this service free of charge with the purchase of an artisanal strap.

Is an aftermarket strap compatible with the Longines Master Collection L2.716.4.71.5?

Yes, any strap with a 20mm lug width is compatible with the Master Collection L2.716.4.71.5. Before purchase, verify that the strap has a suitable attachment width (20mm) and that the total length is appropriate for your wrist. High-quality artisanal straps use vegetable-tanned leather, shell cordovan, or premium elastomers that guarantee durability and patina development over time. A stainless steel deployant clasp adds comfort and security compared to bar-type straps. Quality aftermarket straps require no structural modifications to the case.

How long does a leather strap last on the Longines Master Collection L2.716.4.71.5?

The durability of a leather strap depends on the quality of the raw material and daily wear patterns. A high-quality vegetable-tanned leather strap maintains structural integrity for 3-5 years with moderate use (5-6 days weekly). Leather develops a natural patina in the first year, increasing aesthetic value. Factors that reduce longevity include: constant perspiration, direct sun exposure, ambient humidity, and lack of maintenance. To extend strap life, occasionally apply mink oil or specific leather conditioners. A worn strap can be regenerated by specialist artisans or completely replaced whilst retaining the original springbars. Shell cordovan is more resilient and can last beyond seven years.

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