Strap for Conquest Classic Quartz 34 Stainless Steel / Red Gold PVD / MOP

The lug width of the Longines Conquest Classic L2.386.3.87.7 is 17 millimetres. This parameter defines the internal distance between the two case attachment points and is critical for strap compatibility. A 17mm lug width is specific to this model and other Longines Conquest Classic references featuring a 34mm diameter. Always verify measurement using a digital calliper positioned perpendicularly to the watch dial plane to ensure dimensional accuracy.

For the Conquest Classic L2.386.3.87.7, alligator leather represents the finest aesthetic coherence, particularly in dark brown or burgundy colorations, which harmonise elegantly with the white dial without competing visually. Alternatively, shell cordovan offers superior durability and develops a natural patina over extended use. For wearers requiring thermal breathability, vegetable-tanned calf leather is advisable, especially in warm grey or anthracite tones. Technical rubber represents the pure sporting option for those emphasising the watch's instrumental character.

Strap replacement on a Longines requires specialised tools: two spring bar removal tools (spring bar tools) to extract the elastic pins securing the strap to the lugs. Position the tool in the small lateral bore on each lug, apply gentle inward pressure to compress the spring, then extract the old strap. Align the new strap with the lugs and press the elastic pin until you feel the engagement click. For precise measurements (17mm), professional fitting is recommended to prevent damage to the stainless steel lugs.

Yes, any strap featuring a 17mm lug width is compatible with the Longines Conquest Classic L2.386.3.87.7. Artisanal aftermarket straps (such as those offered by milanostraps) maintain identical dimensional tolerances as original Longines straps, ensuring precise fit and aesthetic stability. The artisanal approach enables customisation in leather selection (alligator, calf, shell cordovan), colouration, and finishing details (initials, thread colour) unavailable with the standard factory strap.

A quality leather strap (alligator, calf, shell cordovan) mounted on a Longines Conquest Classic L2.386.3.87.7 typically lasts 3–5 years under daily use in non-extreme conditions. Shell cordovan, owing to its structural density, may extend this to 5–7 years. Longevity depends on environmental factors (UV exposure, humidity), cleaning frequency, and mechanical stress from wrist movement. Prolonged water exposure (showers, perspiration) accelerates degradation. Vegetable-tanned straps develop visually discernible patina within the first 18 months, signalling controlled ageing.