Longines · Heritage

Strap for BelleArti 19 Quartz Stainless Steel Diamond MOP

Takes 12 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width12 mm
Case diameter19 mm
ReferenceL2.194.0.93.4 (aka: L21940934)
FamilyHeritage
MovementLongines caliber L178 Hours, Minutes, Small Seconds
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

The Heritage L2.194.0.93.4 (aka: L21940934), seen from the bench

The Longines Heritage L2.194.0.93.4 features a 19mm stainless steel case housing the automatic Longines L178 caliber with hours, minutes, and small seconds. Water resistance is 30 metres, case thickness approximately 9.15mm, with sapphire crystal anti-reflective treatment. The 12mm lug width is a distinctive construction detail reflecting 1940s–1950s heritage proportions, requiring precise sizing to avoid aesthetic or mechanical issues.

Frequently asked questions

What is the exact lug width of the Longines Heritage L2.194.0.93.4?

The lug width of the Longines Heritage L2.194.0.93.4 is 12mm. This measurement is consistent across both sides of the case and requires straps specifically designed for this width—no approximations or adapters. Always measure with a digital calliper at the widest point of the attachment, on the inner side, to ensure proper fit.

Which strap do you recommend for the Longines Heritage L2.194.0.93.4?

We recommend medium-brown alligator, burgundy-dark shell cordovan, or vegetable-tanned leather in black for the Heritage L2.194.0.93.4. These materials respect the model's aesthetic integrity and ensure multi-year durability. Avoid dark synthetic rubber and overly thick materials, which distort the proportions of the 19mm case.

How do you change the strap on a Longines Heritage L2.194.0.93.4?

Strap changes are performed by removing the retaining spring bars from the lugs using a dedicated spring bar remover tool. Position the watch on a soft cloth, support the case firmly, and apply steady, gentle pressure. Ensure the new strap's spring bars are fully seated. Never force: a tight lug requires a properly dimensioned strap.

Is an aftermarket strap compatible with the Longines Heritage L2.194.0.93.4?

Yes, provided it is correctly dimensioned for the 12mm lug width. Milano Straps offers compatible straps in various materials (alligator, shell cordovan, leather, NATO), all crafted with artisanal stitching and finishes consistent with Swiss quality standards. An 18-month guarantee covers manufacturing defects.

How long does a leather strap last on a Longines Heritage L2.194.0.93.4?

A quality alligator or leather strap, with ordinary care (drying after rain, protection from prolonged direct sunlight, occasional natural balm treatments), guarantees 5–7 years of daily wear before replacement. Shell cordovan, owing to superior density, can last 8–10 years. Longevity depends significantly on climate conditions and frequency of 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.

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