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Longines · Master Collection

Strap for Longines Master Collection L2.919.4.78.5

The Master Collection 42 Moonphase Stainless Steel / Silver-Arabic / Alligator XL takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

21mm
21 mm strapsAll Longines
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Lug width21 mm
Case diameter42 mm
ReferenceL2.919.4.78.5 (aka: L29194785, L001155210)
FamilyMaster Collection
MovementLongines caliber L899.2 Hours, Minutes, Small seconds | Date | Moonphase
Year2019
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

Standard spring bar · length 21 mm · Ø 1.8 mm double flange · industry standard, no brand part number

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Master Collection 42 Moonphase Stainless Steel / Silver-Arabic / Alligator XL — watch

Straps for the Master Collection L2.919.4.78.5

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

What I'm asked about the Longines Master Collection L2.919.4.78.5

What strap size does the Longines Master Collection L2.919.4.78.5 take?

The Longines Master Collection L2.919.4.78.5 needs 21 mm between the lugs, usually 18 mm at the buckle. It's the size I've been fitting on it for years.

Can the strap on the Longines Master Collection L2.919.4.78.5 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 Master Collection L2.919.4.78.5?

Yes, in 21 mm leather. On a 42 mm dress watch alligator is the natural choice: thin, elegant, what it was born for.

Which strap do you recommend for the Longines Master Collection L2.919.4.78.5?

A thin 21 mm alligator. You'll find it ready in the 21 mm collection. If you'd rather have something built on your wrist, the Casati atelier.

For changing the strap

Classic Strap and Bracelet Removal Tooltwo-tip spring bar tool→Milano Straps Premium Swiss Standard Watch Bucklestang buckle, steel or PVD→Leather Conditioner Milano Strapsnourishes and protects the strap→Casati Milano Rectangular Epsom Leather Travel Case — Brownfor the watch and spare straps→

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