Oris · BC3
Strap for BC3 Advanced Day Date DLC / White / Rubber
Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the BC3 01 735 7641 4766-07 4 22 05B
Selected for the 22 mm lug width · workshop selection
Grey Hammered Leather Strap with Ecru Stitching€98
Natural Calfskin Rally Strap€110
Vintage Brown Calfskin Strap — Natural Patina€98
Natural Calfskin NATO Strap€80
Black Saffiano Rubber Strap€105
The BC3 01 735 7641 4766-07 4 22 05B, seen from the bench
Frequently asked questions
What is the lug width of the Oris BC3 01 735 7641 4766-07 4 22 05B?
The lug width of the BC3 is 22 mm. This measurement refers to the distance between the two lugs on the case where the watch spring bars are inserted. It is the standard specification for Oris's 42 mm day-date model.
Which strap is best for the Oris BC3?
It depends on your intended use. For aviation or tactical environments, a NATO in recycled nylon offers durability and practicality. For everyday elegance, alligator leather or vegetable-tanned calf leather is ideal. For aquatic or humid conditions, rubber is the most technically appropriate choice. All are compatible with the 22 mm lug width.
How do I change the BC3 strap without damaging the case?
Remove the spring bars from the original strap using a fine-tipped screwdriver, working gently on the sides of the lugs. Insert the spring bars into the new strap, aligning them perfectly with the lug holes. Push until you feel the locking click. Avoid hammering the spring bars, which risks scratching the satin-brushed steel.
Is an aftermarket strap compatible with the 42 mm Oris BC3?
Yes, provided the lug width is 22 mm. Always verify the measurement before purchase. Milano Straps offers a variety of 22 mm straps in leather, NATO and rubber, tested for compatibility and build quality on Oris instruments in this category.
How long does a leather strap last on a watch like the BC3?
A quality leather with vegetable tanning, worn under normal conditions, lasts 3–5 years. Durability depends on sun exposure, humidity and frequency of use. Rubber and NATO straps last longer (5–10 years) as they do not degrade like biological leather.
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
