Oris
Williams 01 635 7560 4145
Oris Williams 01 635 7560 4145: strap made to measure on the watch at the Casati Milano atelier, by appointment.
Technical Specifications
Oris 01 635 7560 414501 635 7560 4145
Oris caliber Oris 635 Hours, Minutes, Seconds | Date, Day
The Heritage
The strap for this watch is made to measure
On the Oris Williams the bracelet is drawn as part of the case: no catalogue strap will fit. In the atelier we take the measurements on the watch itself and build the strap on the piece — that is the work of Casati Milano.
Book a consultation →FAQ
What is the exact lug width of the Oris Williams 01 635 7560 4145?
The Oris Williams 01 635 7560 4145 features a 35mm lug width, a specific dimension that requires dedicated straps. The width is measured from the internal base of one lug shoulder to the other, at the insertion point into the case's spring bar mechanism. This measurement is not interchangeable with the more common 42-44mm standards, so compatibility verification is essential before purchasing an aftermarket strap.
Which strap is most suitable for the Oris Williams 01 635 7560 4145?
The choice depends on intended use. For formal elegance, we recommend alligator or calf leather with vegetable tanning: it develops patina over time and enhances the model's sporting identity. For daily wear and humid environments, a NATO strap in cotton-nylon offers practicality and durability. For aquatic activities, vulcanised rubber with grooved texture provides optimal grip and sweat resistance. The Williams accepts all these solutions without aesthetic or functional compromises.
How do you change the strap on the Oris Williams 01 635 7560 4145?
The Oris Williams 01 635 7560 4145 uses a standard spring bar mechanism. Place the watch on a soft pad, locate the small release button or lateral spring that disengages the strap from the case. Gently push the spring inward while pulling the lug shoulder out of the slot. For installing the new strap, align the lug shoulders with the case holes and snap into place until you feel the locking click. Ensure the 35mm width is correct to avoid unwanted play.
Can I use an aftermarket strap compatible with the 01 635 7560 4145?
Yes, provided the lug width is exactly 35mm and construction quality meets artisanal standards. Higher-quality aftermarket straps (vegetable-tanned leather, reinforced stitching, solid deployante clasps) often deliver superior aesthetic performance compared to OEM straps. Milano Straps offers a curated selection of 35mm straps specifically tested for compatibility and durability with the Williams model.
What is the average lifespan of a leather strap for the Oris Williams 01 635 7560 4145?
A quality artisanal leather strap (alligator, calf, shell cordovan) typically lasts 3-5 years with daily wear, developing patina and settling during the first year. Longevity depends on environmental factors (humidity, perspiration, solar exposure) and maintenance (periodic conditioning, rapid drying after water contact). NATO cotton-nylon straps offer longer lifespan (5-7 years) due to weave resistance, whilst vulcanised rubber varies from 4-6 years depending on thickness and vulcanisation quality.