Technical Archive

Longines
Master Collection L2.628.5.38.7 (aka: L26285387)— lug 20mm

Longines Master Collection L2.628.5.38.7 (aka: L26285387): 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Master Collection Date 38.5 Two Tone Linen

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Longines L2.628.5.38.7 (aka: L26285387)
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

L2.628.5.38.7 (aka: L26285387)

Movement

Longines caliber L619.2 Hours, Minutes, Seconds | Date

The Heritage

The Longines Master Collection L2.628.5.38.7 embodies Longines' philosophy since 1832: harmonious proportions, uncompromised readability, and Swiss precision that seeks perfection in daily wear. This two-tone model in 18-carat yellow gold and stainless steel features a 38.50mm case and 20mm lug width, striking a balance in the classic chronometer segment. The L619.2 caliber is a bidirectional automatic movement with date window and 42-hour power reserve, equipped with a Nivachron hairspring resistant to thermal and magnetic variations. The screw-down crown ensures water resistance to 30 metres for daily use.

FAQ

What is the lug width of the Longines Master Collection L2.628.5.38.7?

The Longines Master Collection L2.628.5.38.7 features a lug width of 20mm, which is the internal distance between the two metal bars that secure the strap to the case. This dimension is specific to this model and requires straps specifically manufactured for 20mm lugs.

Which strap is best suited for the Longines Master Collection L2.628.5.38.7?

For the yellow gold and stainless steel two-tone of this Master Collection, we recommend a vegetable-tanned alligator strap in cognac or chocolate brown tones, or a smooth black calf leather for sharper contrast. Natural leather straps enhance the elegance of the watch, whilst rubber is ideal for daily wearers seeking practicality without compromising quality.

How do you change the strap on a Longines Master Collection L2.628.5.38.7?

The change requires a specific tool called a spring bar remover or a small steel lever. You press the two metal bars at the lug ends inward to release the spring, then extract the old strap. The operation takes a few minutes and can be performed by anyone with minimal experience. Avoid forcing the tool to prevent damage.

Can I use an aftermarket strap on a Longines Master Collection L2.628.5.38.7?

Yes, provided it is manufactured for 20mm lugs. Artisanal straps often offer superior construction quality and finishes compared to original Longines models, allowing you to personalise your watch without mechanical compatibility issues.

How long does a leather strap last on a Longines Master Collection L2.628.5.38.7?

Durability depends on usage intensity and tanning method: vegetable-tanned leather typically lasts 2-4 years with intensive daily wear, whilst chrome-tanned leather can exceed 5 years. Shell cordovan is notably more durable, lasting 7-10 years or more. Regular maintenance—air-drying after water contact and treating with natural waxes—significantly extends strap life.