Bulgari · Octo

Strap for Octo Roma 41 Stainless Steel / Silver

Takes 24 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width24 mm
Case diameter41 mm
Reference102779 (aka: OC41C6SLD)
FamilyOcto
MovementBulgari caliber BVL 191 hours, minutes, seconds | date
Year2017
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

The Octo 102779 (aka: OC41C6SLD), seen from the bench

The Bulgari Octo 102779 (OC41C6SLD) is a 41mm stainless steel sports-elegant watch featuring the proprietary BVL 191 caliber movement with hours, minutes, seconds, and date functions. Designed by Gérald Genta in 2012, its distinctive octagonal case geometry creates a faceted surface that reflects light at varying angles. The integrated bracelet flows seamlessly from the case, creating a unified construction. The watch requires a 24mm lug width for strap compatibility.

Frequently asked questions

What is the lug width of the Bulgari Octo 102779?

The Bulgari Octo 102779 (OC41C6SLD) features a lug width of 24 millimetres. This dimension is specific to the model and corresponds to the interface between the octagonal case and the strap attachment points. To verify, use a digital calliper positioning the palpators on the inner shoulders of the lugs.

Which strap would you recommend for the Bulgari Octo 102779?

Alligator is the privileged aesthetic choice: its linear grain amplifies the geometric rigour of the octagonal case. For those seeking manufacturing authenticity, vegetable-tanned calf develops patina over time. Shell cordovan offers sophisticated natural lustre. For sporadic use, FKM rubber or technical fabric straps maintain aesthetic proportion without practical compromise.

How do you change the strap on this watch?

The Bulgari Octo 102779 is equipped with integrated lugs featuring standard 24mm spring bars. Using a spring bar removal tool, insert the tip into the lug access hole, apply pressure to compress the internal spring mechanism, and extract the old strap. Installation proceeds in reverse: align the strap, insert the lugs, and verify the locking click.

Is an aftermarket strap compatible with the 102779?

Yes, all straps with a 24mm lug width are compatible with the Bulgari Octo 102779. It is essential to verify the exact width: an error of 2–3 millimetres results in fitting difficulty or looseness in retention. Bespoke artisanal straps offer certainty of millimetre-perfect correspondence and dedicated finish options.

How long does a natural leather strap last on this watch?

Durability depends on usage and leather quality. An alligator or vegetable-tanned calf strap lasts approximately 18–24 months with daily wear. Leather is a living organism that ages: exposure to humidity, perspiration, and thermal variation accelerates deterioration. Casati Milano atelier offers an 18-month guarantee on custom straps, with possibility of extension through maintenance and regeneration.

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.

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