Strap for Conquest Quartz 34 Stainless Steel - Yellow Gold / MOP

The lug width of the Longines Conquest L3.377.3.87.7 is precisely 17mm, a non-standard measurement that reflects Longines' design philosophy for a 34mm case diameter. This specification is critical when selecting a compatible strap without compromise.

For the Conquest L3.377.3.87.7, the recommended materials are alligator (for maximum refinement and aesthetic evolution), vegetable-tanned calf (versatile and sustainable), NATO (to enhance the sporting heritage), and vulcanised rubber (for durability and everyday practicality). Your choice depends on intended use and personal preferences regarding comfort and style.

The Conquest L3.377.3.87.7 strap is changed using specialist watchmaking tools: a spring bar removal tool or fine-tip screwdriver. It is advisable to consult an experienced watchmaker or the Casati Milano service to prevent case damage. The procedure requires technical precision and delicate handling.

Yes, the 17mm lug width accommodates quality aftermarket straps built to artisanal specifications. Milano Straps offers a curated collection of 17mm straps customisable in leather, alligator and NATO, all compatible with the Conquest and available with rapid delivery. Casati Milano also creates bespoke straps with personalised leather selection.

A quality leather strap for the Conquest L3.377.3.87.7 typically lasts 3–5 years with daily wear, depending on usage frequency, climate conditions and care routine. Vegetable-tanned leather generally outlasts alligator slightly. Casati Milano provides an 18-month warranty on bespoke straps, with maintenance and replacement options available.