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Longines · Master Collection

Strap for Master Collection Date 34 Stainless Steel - Yellow Gold / Silver / Bracelet

Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

18mm
18 mm strapsAll Longines
Lug width18 mm
Case diameter34 mm
ReferenceL2.357.5.72.7
FamilyMaster Collection
MovementLongines caliber L888.5 hours, minutes, seconds | date | chronometer
Year2024
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

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Straps for the Master Collection L2.357.5.72.7

Selected for the 18 mm lug width

All 18 mm straps →

The Master Collection L2.357.5.72.7, seen from the bench

The Longines Master Collection L2.357.5.72.7 is a 34mm stainless steel watch from the legendary Master Collection, embodying Longines' philosophy of harmonious proportions and extreme legibility. It features an automatic L888.5 caliber movement, COSC chronometer-certified with precision up to ±4 seconds per day. The case is made of 316L stainless steel resistant to oxidation, protected by a scratch-resistant sapphire crystal over a white or grey dial with applied indices and date at 3 o'clock. The 18mm lug width provides classical visual harmony between case and strap, distinguishing this model from standard 20mm Master Collection variants.

Frequently asked questions

What is the lug width of the Longines Master Collection L2.357.5.72.7?

The lug width is 18.00mm, specifically designated for this model. Measure it by placing a digital calliper between the inner attachment points of the lugs on the case's inner side, from the centre of one lug to the centre of the other.

What is the best strap material for the Longines Master Collection L2.357.5.72.7?

Alligator remains the material choice: its fine grain and ability to develop a softened patina make it ideal for the 34mm proportion. Vegetable-tanned calf offers a contemporary alternative, whilst shell cordovan represents the exclusive option for those accepting the maintenance commitment it requires.

How do you change the strap on a Longines Master Collection watch?

Grasp the strap end with one hand and, using a dedicated spring bar tool, gently push the metal pin inward to disengage from one lug. Repeat on the other side. Insert the new strap by aligning the pins to the lug slots and press until the click engages.

Which aftermarket straps are compatible with the 18mm lug width?

Any strap with an 18mm lug width is theoretically compatible. We recommend verifying the overall thickness to avoid friction with the case. Milanostraps.it artisanal straps are specifically calibrated for this measurement and constructed with premium Italian leathers.

How long does a natural leather strap last on a watch worn daily?

Quality alligator or vegetable-tanned calf typically lasts 3-5 years with daily wear. Factors such as perspiration, temperature, humidity and maintenance affect longevity. A Casati Milano strap includes an 18-month guarantee against manufacturing defects.

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