Breitling · Chronospace

Strap for Chronospace Quartz

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

Lug width24 mm
Case diameter48 mm
ReferenceA7836534C823746P
FamilyChronospace
MovementBreitling caliber Caliber 78 Additional 12 Hour Hand (adjustable), Additional 24 Hour Hand (adjustable), Hours, Minutes, Seconds | Date, Day, Perpetual Calendar | Chronograph | Alarm | Power Reserve Indicator, Chronometer
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

Straps for the Chronospace A7836534C823746P

Selected for the 24 mm lug width · workshop selection

All 24 mm straps →

The Chronospace A7836534C823746P, seen from the bench

The Breitling Chronospace A7836534C823746P is a professional aviation instrument featuring a 48mm stainless steel case and a 24mm lug width. It houses the Breitling Caliber 78, a COSC-certified chronometer movement integrating chronograph, perpetual calendar, alarm, power reserve indicator, and independently adjustable 12-hour and 24-hour hands. The layered dial requires deliberate reading rather than casual glancing, reflecting its cockpit-instrument design philosophy.

Frequently asked questions

What is the lug width of the Breitling Chronospace A7836534C823746P?

The lug width of the Breitling Chronospace A7836534C823746P is 24mm. This is one of the widest lug openings found on contemporary wristwatches, dimensioned to visually balance the 48mm stainless steel case. It is essential to purchase straps specifically manufactured in this size to ensure correct fitment and optimal wearing comfort.

What is the best strap for the Breitling Chronospace A7836534C823746P?

For the Breitling Chronospace A7836534C823746P, the most suitable materials are Mississippiensis alligator leather in matte finish — which creates a compelling material dialogue with the brushed steel case — and shell cordovan for those seeking an aesthetic coherent with the model's aviatory heritage. In sport or outdoor contexts, a vulcanised rubber strap in 24mm is the most functional option. A vegetable-tanned leather strap is ideal for daily use, as it develops a personal patina over time.

How do you change the strap on the Breitling Chronospace A7836534C823746P?

The strap on the Breitling Chronospace A7836534C823746P is removed using a fine-tipped spring bar tool inserted into the notch on the inner side of the lug. Compress the spring bar and slide the strap out laterally. Given the 24mm width and the robustness of the lugs, it is advisable to work on a soft surface to avoid scratching the case. Fitting the new strap follows the reverse procedure.

Are there aftermarket straps compatible with the Breitling Chronospace A7836534C823746P?

Yes, high-quality aftermarket straps compatible with the Breitling Chronospace A7836534C823746P are available, provided they conform to the 24mm lug width specification. Milano Straps and the Casati Milano atelier produce bespoke and semi-bespoke straps in leather, rubber and fabric specifically for this size. It is also important to verify that the strap's end-piece curvature is compatible with the profile of the Chronospace's lugs.

How long does a leather strap last on a Breitling Chronospace A7836534C823746P?

The longevity of a leather strap depends on material quality, maintenance and frequency of use. A high-quality alligator or shell cordovan strap, regularly treated with nourishing cream and protected from excessive moisture, can last between 3 and 7 years while retaining its structural integrity. Vegetable-tanned leather straps tend to improve aesthetically over time through patina development, while prolonged exposure to perspiration accelerates deterioration of the underside: a white calf leather lining on the reverse significantly extends the strap's useful life.

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