Strap for Conquest Quartz 34 Stainless Steel / Black

The lug width of the Longines Conquest L3.377.4.58.6 is 17mm. This dimension is measured internally between the spring bar pins that attach the strap to the case lugs and is specific to this model. It is essential to verify this measurement before purchasing an aftermarket strap to ensure perfect compatibility.

For the 34mm Conquest, we recommend alligator for formal contexts (black or cognac), vegetable-tanned calf for sophisticated daily wear, shell cordovan for superior natural luminosity, or NATO fabric for summer practicality. Your choice depends on intended use and desired colour coordination with the dial.

The strap is secured via two spring bars inserted into the case lugs. Using a spring bar tool, gently compress the spring mechanism downward on one side, extract the pin, and remove the old strap. Repeat on the other side, then insert the new strap by aligning the pins into the lugs and releasing the spring. The operation takes less than one minute.

Absolutely. Quality aftermarket straps (alligator, calf, shell cordovan) offer greater colour and material options than original Longines straps. It is essential to verify that the lug width is precisely 17mm and that the attachment geometry is compatible with your case.

A quality leather strap (alligator, vegetable-tanned calf, shell cordovan) typically lasts 3–5 years with moderate daily use, depending on humidity, perspiration, and sun exposure frequency. Vegetable-tanned leather ages gracefully, developing a beautiful patina. MilanoStraps offers 18-month warranty on all custom straps, with maintenance and replacement options available.