Longines Master Collection L2.518.4.51.3
The Longines Master Collection L2.518.4.51.3 takes a 19 mm watch band.

Longines · Master Collection
- Lug width
- 19 mm
- Case diameter
- 36 mm
- Reference
- L2.518.4.51.3
- Family
- Master Collection
- Case material
- Acciaio
- Model
- Master Collection Date 36 Stainless Steel
Bands that fit
Cut and stitched in Milano, in the width this watch takes.
Will a strap close on your wrist?
Set for this watch: 36 mm of case and 19 mm between the lugs. Add your wrist and see where a standard strap would close.
mm
Filled in with the case diameter, which is what we hold for this reference. Measure the watch tip to tip for the exact answer: it is usually a few mm more.
Enter your wrist measurement to see whether a standard 75/115 mm strap closes on you, and where.
Sizing notes
- 19 mm is the gap between the lugs, so a 19 mm band goes in without adapters. Whether it sits flush against a 36 mm case depends on how that case is shaped.
- 19 mm is an odd size: most ready-made bands are made in even widths, so this reference needs one cut to measure or a band that runs in odd sizes. Why some watches take odd sizes →
- Inside the Master Collection family the lug width is not one number: it runs 13, 15, 18, 19, 20, 21, 22, 25 mm. This reference is the 19 mm one, so a band bought for another Master Collection may not fit it. Why the size changes inside a family →
- 19 mm is not a common size: only 1,919 of the 41,485 watches measured take it (4.6%), so ready-made choice at this width is narrower than at 20 or 22 mm. Every watch that takes 19 mm →
Other Master Collection references
- Master Collection Date 25.5 Stainless Steel - Diamond / MOPL2.128.0.87.3
13 mm - Master Collection Date 25.5 Stainless Steel - Diamond / MOP / BraceletL2.128.0.87.6
13 mm - Master Collection Date 25.5 Stainless Steel / Black - RomanL2.128.4.51.3
13 mm - Master Collection Date 25.5 Stainless Steel / Black - Roman / BraceletL2.128.4.51.6
13 mm - Master Collection Date 25.5 Stainless Steel / Black - RomanL2.128.4.51.7
13 mm - Master Collection Date 25.5 Stainless Steel / Black / BraceletL2.128.4.57.6
13 mm
Same lug width, other Longines lines
- Conquest Heritage Power Reserve 38 Stainless Steel / BlackL1.648.4.52.2
19 mm - Conquest Heritage Power Reserve 38 Stainless Steel / GreyL1.648.4.62.2
19 mm - Conquest Heritage Power Reserve 38 Stainless Steel / SilverL1.648.4.78.2
19 mm - Conquest Heritage Power Reserve 38 Yellow Gold / SilverL1.648.6.78.2
19 mm - Conquest Heritage Power Reserve 38 Pink Gold / SilverL1.648.8.62.2
19 mm - Conquest Heritage 38 Stainless Steel / GreenL1.649.4.02.2
19 mm
Hammered Black Calfskin Strap — Ecru Stitching
Brown Italian Leather Strap
Black Saffiano Strap Ecru Stitching
Vintage Brown Calfskin Strap — Natural Patina
Swift Topo Leather Strap
Green Lizard Strap