Strap for Conquest Automatic 41mm Black Rubber

The lug width of the Longines Conquest L3.658.4.56.2 is 21mm. This dimension is specific to this model and is not considered a universal standard. To verify it, measure with a ruler the internal distance between one lug seat and the other, perpendicular to the case.

The Conquest responds magnificently to noble materials such as satin-finished alligator in black or cognac brown, which emphasise the technical-sporting character. For a compelling ageing process, vegetable-tanned calf with developed patina is excellent. For versatility, bordeaux shell cordovan combines elegance and durability, whilst vulcanised rubber honours the collection's sporting heritage.

The Conquest uses a spring bar attachment system. Obtain a spring bar removal tool or dedicated implement, position it under the bar from the opposite side of the lug and push towards the case centre. The bar will click and you can then remove the strap. For installation, align the two seats and insert the bar ends into the cavities, verifying the lock.

Yes, any 21mm strap is compatible mechanically with the Longines Conquest L3.658.4.56.2, provided that the lug width matches exactly and the spring bar seats are properly aligned. We recommend always verifying the measurement before ordering. On milanostraps.it you will find a curated selection of 21mm straps specifically dimensioned.

A genuine leather strap on a Longines Conquest, with moderate daily use, maintains structural functionality between 2-4 years. Duration increases with preventive care: rapid drying after perspiration, avoidance of prolonged wetting and occasional treatments with vegetable balms. Premium leathers such as shell cordovan or vegetable-tanned calf develop fascinating patina precisely through time, transforming wear into character.