Breitling · Cockpit

Strap for Cockpit Lady Diamond / MOP / Red 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
ReferenceA7135612.A663
FamilyCockpit
MovementBreitling caliber Caliber B71 Hours, Minutes, Seconds | Date | Chronometer
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

The Cockpit A7135612.A663, seen from the bench

The Breitling Cockpit A7135612.A663 is a 31.80mm professional pilot's watch with stainless steel case featuring alternating brushed and polished surfaces. It houses the Breitling B71 movement, an ETA-derived caliber with COSC chronometer certification ensuring ±4 seconds per day accuracy. The dial displays hours, minutes, seconds and date with functional hierarchy typical of Breitling instruments. The 20mm lug width accommodates a wide range of compatible aftermarket straps, allowing significant personalization while maintaining proportional balance on the feminine Cockpit case.

Frequently asked questions

What is the lug width of the Breitling Cockpit A7135612.A663?

The lug width of the Breitling Cockpit A7135612.A663 is 20mm. This measurement is taken with a digital calliper positioned between the inner edges of the lower lugs, where the strap inserts beneath the horns.

What is the best strap for the Breitling Cockpit A7135612.A663?

For the Cockpit A7135612.A663 with its 31.80mm case, a 20mm vegetable-tanned alligator or shell cordovan strap best complements the stainless steel finish. For more active use, a technical nylon NATO or vulcanised rubber strap are functional alternatives consistent with the instrument-grade identity of the watch.

How do you change the strap on the Breitling Cockpit A7135612.A663?

To replace the strap on the Breitling Cockpit A7135612.A663, the existing bracelet or strap must be removed using a 20mm spring bar tool. A fine-tipped spring bar tool compresses the spring bar ends within the lugs, releasing the strap. It is advisable to have the procedure carried out by a watchmaker to avoid scratching the case.

Are there aftermarket straps compatible with the Breitling Cockpit A7135612.A663?

Yes, any 20mm strap with a straight or slightly curved end is compatible with the Breitling Cockpit A7135612.A663. Milano Straps offers a curated selection of handcrafted straps in alligator, calf leather, shell cordovan and technical materials, all made to this specific lug width.

How long does a leather strap last on a Breitling Cockpit A7135612.A663?

A quality leather strap on a Breitling Cockpit A7135612.A663 typically lasts between 18 and 36 months with daily wear, depending on the material, care and exposure to perspiration and moisture. A vegetable-tanned alligator or shell cordovan strap, properly conditioned and rotated with other straps, can exceed three years while retaining its structural integrity.

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