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
ReferenceA7836534F551
FamilyChronospace
MovementBreitling caliber 78 Additional 12 hours Hand (adjustable), Additional 24 hours Hand (adjustable), hours, minutes, seconds | date, day, perpetual calendar | Chronograph | alarm | power reserve indicator, chronometer
Year2010
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 A7836534F551

Selected for the 24 mm lug width · workshop selection

All 24 mm straps →

The Chronospace A7836534F551, seen from the bench

The Breitling Chronospace Quartz A7836534F551 is a professional instrument with a 48mm stainless steel case and 24mm lug width, conceived for aviators and astronauts. It features the Breitling 78 mechanical movement, COSC chronometer certified, integrating chronograph, perpetual calendar, dual adjustable hour and 24-hour hands, alarm, and power reserve indicator. The dial reads like a flight deck with precise hierarchical information, designed for operation even with pilot gloves, combining technical density with stark instrumental architecture without aesthetic compromise.

Frequently asked questions

What is the lug width of the Breitling Chronospace A7836534F551?

The lug width of the Breitling Chronospace A7836534F551 is 24mm. This above-average measurement reflects the instrument-grade nature of the watch and requires straps specifically manufactured in this width to ensure precise fitment and correct aesthetics.

What is the best strap for the Breitling Chronospace A7836534F551?

The ideal strap depends on the intended context. A bombed alligator strap in anthracite or midnight blue creates a formally coherent pairing with the black dial. Vegetable-tanned calfskin prioritises daily comfort. Technical NATO or vulcanised rubber are suited to operational use. A steel deployante clasp is recommended on any leather strap to reduce stress at the buckle point.

How do I change the strap on the Breitling Chronospace A7836534F551?

Strap replacement is performed by acting on the spring bars located between the case lugs. Using a fine-tipped springbar tool, compress the bar on one side until it clears the lug channel, then slide the strap free. Care is required to avoid scratching the steel surfaces. For a first-time replacement, consulting a watchmaker or specialist atelier is advisable.

Are there aftermarket straps compatible with the Breitling Chronospace A7836534F551?

Yes, any strap with a 24mm lug width and standard spring bars is compatible with the Chronospace. Milanostraps.it offers a selection of handcrafted straps in 24mm, available bespoke or ready to ship, in materials including alligator, Tuscan calfskin, shell cordovan, NATO fabric, and rubber. The standard recommended length is 120/75mm for average wrist sizes.

How long does a leather strap last on a Breitling Chronospace A7836534F551?

Longevity depends on leather quality, maintenance, and frequency of use. A high-grade vegetable-tanned calfskin strap, kept away from excess moisture and treated periodically with a neutral conditioner, typically lasts 2–4 years. Alligator leather, owing to its denser fibre structure, resists deformation more effectively. Using a deployante clasp significantly extends strap life by eliminating stress at the buckle point.

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