Longines · Lyre

Strap for Lyre Quartz 38.5mm Roman

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

Lug width20 mm
Case diameter39 mm
ReferenceL4.859.4.11.2 (aka: L48594112)
FamilyLyre
MovementLongines caliber L157 Hours, Seconds, Minutes | Date
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 Lyre L4.859.4.11.2 (aka: L48594112)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Lyre L4.859.4.11.2 (aka: L48594112), seen from the bench

The Longines Lyre reference L4.859.4.11.2 mounts the L157 caliber with indication of hours, minutes, seconds and date. The watch features 20mm lugs for the strap. The movement ensures the essential time-reading functions with a date complication.

Frequently asked questions

What is the lug width of the Longines Lyre L4.859.4.11.2?

The lug width of the Longines Lyre L4.859.4.11.2 is 20 mm. This measurement, taken from the inside of one lug to the inside of the opposite lug, determines the precise width of a compatible strap. Accurate measurement is essential: use a digital calliper positioned between the lugs without compressing the case.

Which strap is recommended for the Longines Lyre?

For the Longines Lyre L4.859.4.11.2, we recommend an alligator leather from vegetable tanning (tobacco brown or black) for formal elegance, or natural vegetable-tanned calf leather for daily comfort and natural patina development. For sportier versatility, a technical rubber strap (tropical strap) maintains the watch's refined essence whilst lowering formal protocol.

How do you change the strap on a Longines Lyre?

The Longines Lyre strap is changed by removing the spring bars connecting the strap to the case lugs. Use a spring bar tool to gently push the small elastic pin inward, freeing the old strap. Align the new strap with the lug holes and reinsert the spring bar until it clicks into place. If unfamiliar with the procedure, the Casati Milano atelier offers professional strap-changing services.

Is an aftermarket strap compatible with the Longines Lyre L4.859.4.11.2?

Yes, any strap with a 20 mm lug width is compatible with the Longines Lyre L4.859.4.11.2. High-quality artisanal aftermarket straps (such as those from milanostraps.it) offer infinite customisation possibilities in leather, colour and finishing whilst maintaining full technical compatibility. Always verify the lug width before purchasing.

How long does a leather strap last on a watch like the Longines Lyre?

A quality leather strap (alligator or vegetable-tanned calf) typically lasts 3-5 years with daily use, varying according to exposure to sunlight, water and humidity. Natural leather adapts to the wrist, develops patina, but inevitably ages. A fine alligator or calf strap remains aesthetically acceptable beyond five years. The Casati Milano atelier provides an 18-month warranty on its artisanal straps.

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