Longines · Spirit

Strap for Spirit Chronograph 42 Blue / Bracelet

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter42 mm
ReferenceL3.820.4.93.6
FamilySpirit
MovementLongines caliber L688.4 hours, minutes, small seconds | date | Chronograph, column wheel | chronometer
Year2020
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 Spirit L3.820.4.93.6

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Spirit L3.820.4.93.6, seen from the bench

The Longines Spirit L3.820.4.93.6 is a contemporary evolution of a legacy linked to explorers and aviators who shaped Swiss watchmaking history. It features a night blue sunburst dial paired with a 42mm stainless steel case with squared proportions and tapered lugs. Powered by the Longines L688.4 caliber, a manual-wind movement with column wheel chronograph and certified chronometer complication, it offers 100 meters water resistance, anti-reflective sapphire crystal, and transparent caseback. The 22mm lug width ensures balanced proportions and versatile wearability on medium to large wrists.

Frequently asked questions

What is the lug width of the Longines Spirit L3.820.4.93.6?

The lug width of the Longines Spirit L3.820.4.93.6 is 22mm. This measurement is taken between the two pins that connect the strap to the case. The pins have a standard diameter of 1.8mm, ensuring compatibility with any 22mm aftermarket strap.

Which strap should I choose for the Longines Spirit L3.820.4.93.6?

Your choice depends on use and personal taste. For a technical and versatile aesthetic, a premium NATO strap in midnight blue is ideal. For discrete elegance, choose an alligator or brown regenerated calf leather strap. A structured rubber strap emphasises sportiness, whilst vegetable-tanned leather in black or grey offers sobriety. Every choice should harmonise with the sunburst blue dial and the steel case.

How do I change the strap on my Longines Spirit L3.820.4.93.6?

Strap replacement is straightforward. Use a spring bar tool or small pressure spring to push the pins through the lateral case holes. The pins will come out easily. Remove the old strap, align the holes of the new strap with the case pins and press the pins until fully secured. Verify that the strap is symmetrically fastened on both sides.

Can I buy a compatible 22mm strap from a manufacturer other than Longines?

Yes, 22mm aftermarket straps are completely compatible with the Longines Spirit L3.820.4.93.6. The connecting pins follow international standards, so any strap of the correct lug width fits perfectly. Milano Straps offers a wide range of 22mm straps, customisable in leather, NATO and technical materials.

How long does a leather strap last on the Longines Spirit L3.820.4.93.6?

Durability varies depending on leather quality and tanning method. A calf or alligator strap with vegetable tanning typically lasts 18–36 months with moderate daily use. Patina and wear marks are natural and increase charm. With proper care (avoid prolonged soaking and intense perspiration), longevity extends considerably. Milano Straps straps offer an 18-month warranty and maintenance support.

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