Strap for Conquest 34 Quartz Moonphase Stainless Steel / MOP / Bracelet

The lug width of the Longines Conquest L3.381.4.87.6 is 17 millimetres. This measurement is specific to this model and must be verified precisely when searching for a compatible aftermarket strap. Use a digital calliper to measure the net distance between the spring bar attachment points on both sides of the case.

For the Longines Conquest L3.381.4.87.6, straps in matte alligator with medium grain are recommended, ideal for balancing the sport-elegant styling. Alternatively, vegetable-tanned calf leather offers a sustainable option with natural patina development over time. For more casual uses, rubber or NATO nylon straps ensure practicality and moisture resistance.

To change the strap, remove the spring bars using a dedicated tool. Position the tool under the spring bar and apply gentle upward pressure to release it, then withdraw the old strap. Align the holes of the new strap with the slots in the lugs and reinsert the spring bars using the spring bar tool, ensuring they are fully locked.

Yes, any strap with a 17mm lug width is compatible with the Longines Conquest L3.381.4.87.6. Always verify the lug width before purchase. Artisanal straps offer customisation advantages: choice of leather, embroidered initials, custom stitching thread and extended warranty compared to generic models.

The lifespan of a leather strap depends on intensity of use and maintenance. A quality alligator or calf leather strap can last 3–5 years under normal conditions, with regular care (gentle cleaning, air drying). Vegetable-tanned materials develop patina over time, improving aesthetically with use. To extend its life, avoid prolonged moisture and keep the strap away from direct heat.