Oris · BC3

Strap for BC3 Day Date 42 Stainless Steel / Black / Rubber

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter42 mm
Reference01 635 7534 4164-07 4 20 10
FamilyBC3
Year2000 - 2010
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the BC3 01 635 7534 4164-07 4 20 10

Selected for the 20 mm lug width

All 20 mm straps →

The BC3 01 635 7534 4164-07 4 20 10, seen from the bench

The Oris BC3 represents a collection of sporty watches characterized by functional design and robustness. The reference 01 635 7534 4164-07 4 20 10 features 20mm lugs for the strap. The watch is part of the brand's Swiss manufacturing tradition with a focus on practical everyday use.

Frequently asked questions

What is the lug width of the Oris BC3 01 635 7534 4164-07 4 20 10?

The lug width is 20mm. This measurement must be verified internally between the upper case attachments. Any compatible strap must respect this exact width to fit perfectly without lateral movement.

What is the best strap for the Oris BC3 01 635 7534 4164-07 4 20 10?

The choice depends on usage: alligator or vegetable-tanned leather for formal-casual wear, developing natural patina over time; heavy canvas NATO for sport and aquatic contexts; vulcanised rubber for constant marine use. The BC3 accommodates all three while maintaining its instrumental character.

How do I change the strap on the Oris BC3 01 635 7534 4164-07 4 20 10?

Use a spring bar tool. Position it in the grooves of the upper lug, press downward to compress the pin, then remove the old strap. Insert the new strap by aligning the lugs to the attachments and release the pin into position.

Is an aftermarket strap compatible with the Oris BC3 01 635 7534 4164-07 4 20 10?

Yes, provided it respects the 20mm lug width and total length (strap length + upper shoulder + lower shoulder). MilanoStraps offers verified straps that are ready for installation without margin for error.

How long does a leather strap last on the Oris BC3 01 635 7534 4164-07 4 20 10?

An alligator or vegetable-tanned leather strap lasts 3-5 years with daily wear, developing natural patina. Longevity depends on UV exposure, humidity, cleaning frequency and leather quality. Rubber lasts 4-6 years, NATO lasts 5-7 years if heavy-duty canvas.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only