Longines · Spirit

Strap for Spirit Chronograph 42 Blue / Strap

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
ReferenceL3.820.4.93.0
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 L3.820.4.93.0

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Spirit L3.820.4.93.0, seen from the bench

The Longines Spirit Chronograph L3.820.4.93.0 is a 42mm stainless steel chronograph rooted in 1930s aviation heritage. It features the automatic Longines L688.4 calibre with column-wheel chronograph complication, offering precise measurements to one-tenth of a second alongside hours, minutes, small seconds, and date window. The cylindrical case combines professional readability with formal wearability, protected by anti-reflective sapphire crystal. Designed for 22mm lug width, ensuring robust attachment and stability without mechanical play.

Frequently asked questions

What is the lug width of the Longines Spirit L3.820.4.93.0?

The Longines Spirit L3.820.4.93.0 features a lug width of 22mm. This measurement is the standard for 42mm sport chronographs and ensures robust case attachment. To verify compatibility, measure the distance between the two lugs on your case: it must correspond exactly to 22mm.

Which strap should I choose for the Longines Spirit L3.820.4.93.0?

For this classic chronograph, we recommend vegetable-tanned Tuscan leather in dark brown or black: it enhances the functional geometry of the case without betraying its aeronautical heritage. Valid alternatives include alligator in chocolate tones, heavy canvas NATO, or satin rubber for marine use. Your choice depends on context: formal-sportive requires leather, absolute versatility suggests NATO.

How do I change the strap on my Longines Spirit L3.820.4.93.0?

Strap replacement requires a spring bar tool to remove the small metal bars securing the strap to the lugs. Insert the tool into the bar's slot, apply gentle upward pressure, and the strap disengages. Repeat on the opposite lug. To install a new strap, align it with the lug holes and press until the spring bars click into position.

Is the strap from Milano Straps compatible with my Longines Spirit?

Yes, but only if you order the 22mm version. Always verify on Milano Straps' product page that the lug width matches 22mm. Attachment thicknesses vary by case diameter, so it is essential to measure your case lugs or consult the Longines manual for reference L3.820.4.93.0.

How long does a leather strap last before wearing out?

A high-quality artisanal Tuscan leather strap, worn with rotation (alternating with other straps), lasts 5 to 8 years. Primary wear occurs in zones of constant flexion and at the buckle. Milano Straps offers an 18-month warranty on personalised straps and recommends periodic replacement of the buckle or deployant to extend leather 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