Breitling · Cockpit

Strap for Cockpit Lady Gold Bezel / Black / Teju

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

Lug width20 mm
Case diameter32 mm
ReferenceC7135612.B904
FamilyCockpit
MovementBreitling caliber Caliber B71 Hours, Minutes, Seconds | Date | Chronometer
CaseYellow Gold, Stainless Steel

Spring bar

Swiss Standard universal spring bars

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

The Cockpit C7135612.B904, seen from the bench

The Breitling Cockpit C7135612.B904 is a professional aviation-inspired timepiece from the Cockpit family, featuring a 31.80 mm bicolor case in stainless steel and yellow gold. It houses the Breitling Caliber B71 mechanical movement with COSC chronometer certification, ensuring ±4 seconds per day accuracy. The watch includes hours, minutes, seconds, and date functions. With a 20 mm lug width, it suits proportionate wrist sizes while maintaining excellent dial readability. The bicolor combination offers versatile styling appeal.

Frequently asked questions

What is the lug width of the Breitling Cockpit C7135612.B904?

The Breitling Cockpit C7135612.B904 has a lug width of 20 mm. This is one of the most common sizes in quality watchmaking, ensuring a wide selection of aftermarket straps in leather, rubber, and composite materials.

What is the best strap for the Breitling Cockpit C7135612.B904?

Given the two-tone yellow gold and steel case of the Cockpit C7135612.B904, vegetable-tanned alligator straps in tobacco brown or burgundy best complement the gold elements. Shell cordovan in a polished finish pairs naturally with the steel components. A deployant clasp in steel or gold completes the aesthetic with architectural precision.

How do you change the strap on a Breitling Cockpit C7135612.B904?

To replace the strap on the Cockpit C7135612.B904, you will need a spring bar tool, widely available from watch retailers or online. Insert the forked end into the lug groove, compress the spring bar, and slide the strap free. The process takes approximately two minutes per side and requires no specialised watchmaking skills.

Are there aftermarket straps compatible with the Breitling Cockpit C7135612.B904?

Yes. The 20 mm lug width of the Cockpit C7135612.B904 is compatible with any standard 20 mm strap. Milano Straps offers a curated range of handcrafted straps in alligator, calf leather, shell cordovan, and rubber, all shaped to fit the Breitling case geometry without gaps or misalignment.

How long does a leather strap last on the Breitling Cockpit C7135612.B904?

The lifespan of a leather strap depends on the quality of the hide and daily wear conditions. A vegetable-tanned alligator or shell cordovan strap, properly maintained and kept away from moisture, excessive perspiration, and heat sources, will typically last between two and four years of regular use. Casati Milano straps carry an 18-month production defect warranty.

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