Strap for BC4 Chronograph Stainless Steel / Black / Bracelet

The Oris BC4 in the 01 674 7616 4154-07 8 22 58 configuration features a lug width of 22mm, measured between the internal edges of the strap attachment seats on the case. This measurement is standard for mid-large format tool watches and ensures balanced proportions with the 42.7mm case diameter.

We recommend vegetable-tanned Tuscan leather with Honey patina for the BC4 01 674 7616 4154-07 8 22 58: the natural aging of the hide amplifies the watch's tactical character. Alternatively, an anthracite-grey NATO preserves instrumental vocation without aesthetic compromise, whilst alligator in mid-brown represents the formal choice.

Strap removal is accomplished by unscrewing the spring bars located at the case lugs using a dedicated tool or small flathead screwdriver. Insert the new strap into the seat, align the holes on the leather with the pins, and rotate clockwise until mechanical lock engages. Verify secure adhesion before wearing the watch.

Yes, any strap with 22mm lug width is compatible with the BC4 01 674 7616 4154-07 8 22 58, provided the leather width accommodates the case geometry. Ensure the internal keeper and strap thickness do not compress the case body or create excessive lateral play during wear.

A quality vegetable-tanned strap, rotated with alternatives, has a service life of 3–5 years. If worn daily in humid climates or direct sunlight exposure, fibre deterioration accelerates considerably. Lug lubrication and periodic cleaning with a damp cloth significantly extend strap longevity.