Strap for Master Collection 38.5 Day Date Pink Gold / Silver-Arabic / Alligator XL

The lug width (or spring bar width) of the Longines Master Collection L2.755.8.78.5 is 20mm. This measurement is critical for strap compatibility: it must be measured precisely between the two lugs of the case at the point where the original strap connects. Any measurement error would result in incompatible straps.

For the Master Collection L2.755.8.78.5 in rose gold, alligator leather is the ideal choice, in cognac or burgundy tones, which naturally harmonizes with the precious case. Vegetable-tanned calf leather is excellent for those seeking patina development over time. Shell Cordovan, though more demanding in maintenance, offers unparalleled natural lustre. A vulcanized FKM rubber strap is suitable for those seeking sportiness without compromising elegance.

Strap change is performed by removing the spring bars from the case, an operation requiring a dedicated tool. Position the watch horizontally, insert the flat end of the tool under the spring bar, press gently downward to release the spring mechanism, and retract the bar from the lug. Repeat for both sides. The new 20mm strap is inserted into the same points until you hear the locking click.

Yes, aftermarket straps with exactly 20mm lug width are fully compatible with the Longines Master Collection L2.755.8.78.5. It is essential that the width is precisely 20mm. Straps from certified artisan makers, crafted in alligator or vegetable-tanned calf, maintain build quality consistent with original Longines standards.

A high-quality leather strap, such as alligator or vegetable-tanned calf, when worn daily on a Longines Master Collection L2.755.8.78.5, typically lasts 3-5 years before requiring replacement. Longevity depends on usage, exposure to moisture, and maintenance. A Shell Cordovan strap, with proper care, can reach 7-8 years. The standard warranty on artisan straps is 18 months.