Longines · Saint Imier

Strap for Saint-Imier Chronograph

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

Lug width20 mm
Case diameter41 mm
ReferenceL2.752.4.72.0 (aka: L27524720)
FamilySaint Imier
MovementLongines caliber L688.2 Hours, Minutes, Small Seconds | Date | Chronograph, Column wheel
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 Saint Imier L2.752.4.72.0 (aka: L27524720)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Saint Imier L2.752.4.72.0 (aka: L27524720), seen from the bench

The Longines Saint-Imier L2.752.4.72.0 is a chronograph presented in 2012 as a tribute to the Swiss village where Longines manufacture began in 1832. It features a 41 mm stainless steel case with a guilloché silver dial, chronograph counters at 3 and 9 o'clock, and small seconds at 6 o'clock. The Longines L688.2 caliber, based on ETA, ensures precise chronograph operation. The 20 mm lug width is proportioned to the case geometry, with sapphire crystal and 30 m water resistance.

Frequently asked questions

What is the lug width of the Longines Saint Imier L2.752.4.72.0?

The lug width of the Longines Saint Imier L2.752.4.72.0 is 20 millimetres. This measurement represents the distance between the upper and lower lugs of the stainless steel case and is essential for selecting compatible watch straps. To verify correct measurement, use a digital calliper or measure the space between the upper and lower case lugs directly.

Which strap is most suitable for the Longines Saint Imier L2.752.4.72.0?

The Saint Imier L2.752.4.72.0 pairs excellently with vegetable-tanned alligator straps in tobacco brown or dark shades, which enhance the model's sporty elegance. Alternatively, smooth calfskin in burgundy with a stainless steel deployante maintains the chronograph's functional character. For casual wear, cotton NATO straps or FKM rubber offer functional versatility. Your choice should balance aesthetic harmony between formality and sportiness.

How do I change the strap on the Longines Saint Imier L2.752.4.72.0?

To change the strap, access the spring bars securing it to the lugs. Use a dedicated spring bar tool to compress the internal spring mechanism, gently extracting the previous strap. Insert the new strap by aligning its holes with the case lugs and gradually release the spring. This operation requires precision to avoid damaging the spring bars or case lugs.

Can I use an aftermarket strap compatible with the Longines Saint Imier L2.752.4.72.0?

Yes, the Longines Saint Imier L2.752.4.72.0 accommodates quality aftermarket straps, provided they feature the correct 20-millimetre lug width. Artisanal leather straps crafted from noble hides with refined finishes deliver superior durability and comfort compared to standard alternatives. Always verify that the new strap's spring bars are compatible with the case lugs before installation.

What is the expected lifespan of a leather strap for the Longines Saint Imier L2.752.4.72.0?

A quality leather strap, crafted using vegetable tanning and artisanal finishing, typically lasts 3-5 years with regular use and proper maintenance. Longevity depends on frequency of wear, UV exposure, humidity, and the leather's intrinsic quality. Noble leathers such as alligator and shell cordovan retain aesthetic and structural properties longer, developing a natural patina that enhances visual appeal over time. Periodic maintenance—gentle cleaning and natural wax treatment—significantly extends the strap's useful life.

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