Longines
Conquest L3.720.4.52.6— lug 19mm
Longines Conquest L3.720.4.52.6: 19mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 19mm lug width to preserve the original sartorial balance."
Technical Specifications
Longines L3.720.4.52.6The essential strap measurement.
Browse 19mm straps →L3.720.4.52.6
Longines caliber L888.5 Hours, Minutes, Seconds | Date | Chronometer
The Heritage
Compatible Straps
Selected for the 19mm lug width of the Conquest
FAQ
What is the lug width of the Longines Conquest L3.720.4.52.6?
The lug width of the Longines Conquest L3.720.4.52.6 is 19 millimetres. This measurement is taken from centre to centre of the case attachment points, on the interior side of the lugs. A strap incompatible with this width will not fit correctly and will compromise the watch's aesthetic balance.
What is the best strap for the Longines Conquest L3.720.4.52.6?
The best strap depends on intended use and personal preference. For a classic pairing, we recommend vegetable-tanned alligator or calf leather. For a sportier option, shell cordovan or textured FKM rubber maintains the technical character of the Conquest. The Casati Milano atelier can guide you through direct consultation on leathers, colours, and finishes.
How do I change the strap on the Longines Conquest L3.720.4.52.6?
Strap removal is accomplished using a spring bar tool. Position the tool in the lateral slots of the lug, apply gentle pressure to compress the internal spring, and slide the bar outward. Repeat on the opposite side. The new strap must have a 19mm lug width to attach correctly. If inexperienced, consult a professional watchmaker.
Can I use an aftermarket strap on this Longines?
Yes, any aftermarket strap with a 19 millimetre lug width is compatible with the Longines Conquest L3.720.4.52.6. milanostraps.it offers handcrafted, customisable straps in premium leathers (alligator, calf, shell cordovan). Always verify that the lug width matches your attachment points precisely.
How long does a leather strap last on this watch?
Leather strap longevity depends on use, material, and maintenance. An alligator or vegetable-tanned calf strap, worn daily with proper care, typically lasts 3–5 years. Shell cordovan, being denser, can exceed 7 years. Excessive humidity, heat, and prolonged sun exposure accelerate ageing. Casati Milano guarantees 18 months on bespoke straps, covering manufacturing defects.