Longines · Spirit

Strap for Longines Spirit L3.812.5.53.6

The Spirit Zulu Time 42 Stainless Steel - Yellow Gold / Anthracite / Bracelet takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

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Lug width22 mm
Case diameter42 mm
ReferenceL3.812.5.53.6 (aka: L38125536)
FamilySpirit
MovementLongines caliber L844.4 Hours, Minutes, Seconds, Additional 24 Hours Hand (adjustable) | Date
Year2023
CaseCeramic, Yellow Gold, Stainless Steel

Spring bar

Swiss Standard universal spring bars

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

What I'm asked about the Longines Spirit L3.812.5.53.6

What strap size does the Longines Spirit L3.812.5.53.6 take?

The Longines Spirit L3.812.5.53.6 needs 22 mm between the lugs, usually 18 or 20 mm at the buckle. It's the size I've been fitting on it for years.

Can the strap on the Longines Spirit L3.812.5.53.6 be changed?

Yes. It has spring bars between the lugs: with the right tool the strap comes off in a minute. If you'd rather not risk a scratch, I do it in the workshop.

Can I put a leather strap on the Longines Spirit L3.812.5.53.6?

Yes, in 22 mm leather. On a 42 mm case a calf strap works every day; if you want something more, alligator.

Which strap do you recommend for the Longines Spirit L3.812.5.53.6?

A 22 mm calf strap, for every day. You'll find it ready in the 22 mm collection. If you'd rather have something built on your wrist, the Casati atelier.

Straps for the Spirit L3.812.5.53.6

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Spirit L3.812.5.53.6, seen from the bench

The Spirit is equipped with the Longines L844.4 caliber that offers indication of hours, minutes, seconds and an adjustable second time zone hand, completed by a date display. The movement features travel functions with an additional independently adjustable 24-hour hand. 22mm lug width for the strap.

Frequently asked questions

What is the best leather strap for the Longines Spirit L3.812.5.53.6?

For the Longines Spirit L3.812.5.53.6, alligator leather represents the reference choice: the fibrous density of the hide ensures resistance to prolonged wear, whilst the natural scale pattern does not replicate industrial minimalism, but rather emphasises artisanal manufacture. Alternatively, vegetable-tanned calf offers homogeneous grain and softer tactile perception, ideal for those prioritising daily comfort. Shell cordovan constitutes a compromise: equine shoulder leather of superior density, capable of developing rich patina within short timeframes.

Can I use an aftermarket strap on the Longines Spirit L3.812.5.53.6?

Yes, a quality aftermarket strap is fully compatible with the Longines Spirit L3.812.5.53.6, provided the lug width is precisely 22 millimetres and thickness does not exceed 4–4.5 millimetres. Straps crafted in quality artisanship (alligator, vegetable-tanned calf, shell cordovan) offer personalisation opportunities superior to the factory strap: choice of leather, embroidered initials, stitching tone. Always verify that the deployant or buckle is proportioned to the strap width to achieve visual continuity.

How long does a leather strap last on the Longines Spirit L3.812.5.53.6?

Leather strap longevity depends on material, intensity of use and maintenance. An alligator strap well cared for may last 5–7 years of continuous daily use; vegetable-tanned calf tends to require replacement between 3–5 years due to moisture absorption; shell cordovan falls between the two, with longevity approaching 6 years. Regular maintenance (cleaning, occasional water-repellent treatments) significantly extends useful life. Natural wear signs (pigmentation on edges, surface patina) do not constitute defects, but rather testament to authentic use.

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.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only

The atelier's website: casatimilano.com