Breitling · Cockpit B50

Strap for Breitling Cockpit B50 EB5010221B1E1

The Cockpit B50 Titanium / Black / Bracelet takes 24 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

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Lug width24 mm
Case diameter46 mm
ReferenceEB5010221B1E1 (aka: EB501022/BD40/176E)
FamilyCockpit B50
MovementBreitling caliber B50 Additional 24 Hours Hand (adjustable), Hours, Minutes, Seconds | Date, Day, Month, Perpetual calendar, Year indicator | Chronograph, Countdown, Flyback, Rattrapante | Alarm | Chronometer, Power reserve indicator
CaseTitanium

Spring bar

Swiss Standard universal spring bars

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

Straps for the Cockpit B50 EB5010221B1E1

Selected for the 24 mm lug width · workshop selection

All 24 mm straps →

What I'm asked about the Breitling Cockpit B50 EB5010221B1E1

What strap size does the Breitling Cockpit B50 EB5010221B1E1 take?

The Breitling Cockpit B50 EB5010221B1E1 needs 24 mm between the lugs, usually 20 mm at the buckle. It's the size I've been fitting on it for years.

Can the strap on the Breitling Cockpit B50 EB5010221B1E1 be changed?

Yes. It has spring bars between the lugs: with the right tool the strap comes off in a minute. If you'd rather not risk a scratch, I do it in the workshop.

Can I put a leather strap on the Breitling Cockpit B50 EB5010221B1E1?

Yes, in 24 mm leather. On a 46 mm case a calf strap works every day; if you want something more, alligator.

Which strap do you recommend for the Breitling Cockpit B50 EB5010221B1E1?

A 24 mm calf strap, for every day. You'll find it ready in the 24 mm collection. If you'd rather have something built on your wrist, the Casati atelier.

The Cockpit B50 EB5010221B1E1, seen from the bench

The Cockpit B50 features the Breitling B50 caliber with chronograph, flyback, split-seconds and perpetual calendar functions. The watch has an adjustable second hour hand and countdown functions in addition to date, day, month and year indications. 24mm lugs complete the technical configuration of the timepiece.

Frequently asked questions

Which strap is best suited for the Breitling Cockpit B50?

For the Cockpit B50, vegetable-tanned alligator in tobacco or cognac tones offers the finest aesthetic balance: the irregular scale texture dialogues with the technical nature of titanium, whilst the patina that develops over time softens the optical hardness of the metal. Vegetable-tanned calf is a minimalist and formal choice. Shell cordovan demands aesthetic awareness due to its specular effect.

Is an aftermarket 24mm strap compatible with the Breitling Cockpit B50?

Yes, any strap with a 24mm lug width is mechanically compatible with the Cockpit B50. However, aesthetic compatibility depends on construction quality and proportions. Artisanal leather straps of high quality (alligator, calf, shell cordovan) guarantee not only mechanical fit, but visual harmony with the titanium case. Avoid plastic or synthetic leather straps, which will appear incongruous on an instrument of this class.

How long does a leather strap last on a Breitling Cockpit B50?

The lifespan of a genuine leather strap (alligator, calf, shell cordovan) depends on frequency of use and maintenance. With daily wear and appropriate care—drying if wet, avoiding direct heat sources, conditioning with specialist creams every 6–12 months—an artisanal quality strap lasts between 3 and 7 years. Casati Milano straps, crafted from carefully selected premium leathers, include an 18-month guarantee against manufacturing defects. Shell cordovan, possessing superior molecular density, tends to last longer than alligator or calf.

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

The atelier's website: casatimilano.com