Leroy
Osmior Range LL104/1— lug 20mm
Leroy Osmior Range LL104/1: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 20mm lug width to preserve the original sartorial balance."
Technical Specifications
Leroy LL104/1The essential strap measurement.
Browse 20mm straps →LL104/1
Leroy caliber L512 Manufacture Leroy Hours, Minutes, Small Seconds | Tourbillon Escapement, Chronometer
The Heritage
Compatible Straps
Selected for the 20mm lug width of the Osmior Range
FAQ
What is the lug width of the Leroy Osmior Range LL104/1?
The Leroy Osmior Range LL104/1 features a 20mm lug width. This dimension is measured internally between the spring bar attachment points on the white gold case. Precision is paramount: any deviation would compromise either the mechanical stability of the strap or aesthetic harmony relative to the case proportions.
Which strap is best suited for the Leroy Osmior Range LL104/1?
The ideal strap depends on usage context and aesthetic preference. Dark brown or black alligator ensures classical elegance, amplifying the precious quality of white gold. Vegetable-tanned calf leather offers chromatic evolution over time. A grey or beige NATO introduces sporty modernity. Textured FKM rubber represents the most contemporary choice for intensive daily wear.
How do I change the strap on a Leroy watch with an integrated lug?
The LL104/1 uses standard 20mm straight spring bar attachment. To change the strap, remove the spring bars using a dedicated tool (spring bar tool) or consult a qualified watchmaker. Extract the bars from the lower case position, slide away the old strap, and insert the new one. Ensure the bars are correctly seated and the strap adheres symmetrically.
Can I use an aftermarket-compatible strap on a Leroy Osmior Range LL104/1?
Yes, the Leroy LL104/1 is fully compatible with premium aftermarket straps, provided they respect the 20mm lug width specification. Milano Straps offers a curated selection of alligator, vegetable-tanned calf, shell cordovan, NATO, and FKM rubber straps, all tested for aesthetic harmony and mechanical compatibility with this case.
What is the lifespan of a leather strap on a Leroy Osmior Range LL104/1?
A quality leather strap (alligator, calf, shell cordovan) worn daily maintains structural integrity for 2-3 years. The attachment point near the lug (at the dial side) is the first natural point of wear. Vegetable-tanned leather ages nobly, developing rich patina; chrome-tanned leather offers superior durability but less aesthetic evolution. Synthetic NATO and FKM rubber straps exceed 5 years of intensive use.