Breitling · Cockpit B50

Strap for Cockpit B50 Night Mission Diamondworks / Black / Rubber

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

Lug width24 mm
Case diameter46 mm
ReferenceVB5010AW/BD41/155S/V20DSA.4
FamilyCockpit B50
MovementBreitling caliber Caliber B50 Additional 24 Hour 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 VB5010AW/BD41/155S/V20DSA.4

Selected for the 24 mm lug width · workshop selection

All 24 mm straps →

The Cockpit B50 VB5010AW/BD41/155S/V20DSA.4, seen from the bench

The Breitling Cockpit B50 VB5010AW/BD41/155S/V20DSA.4 is a sophisticated aviation instrument featuring a 46mm aerospace titanium case paired with the B50 caliber, a thermocompensated super-quartz movement operating at 76,800 vibrations per hour and COSC-certified. This hybrid digital-analog movement includes a perpetual calendar, flyback chronograph with split-seconds function, countdown, alarm, and 24-hour hand for second timezone. The bidirectional titanium bezel, extra-large crown for gloved operation, and brushed finish reflect its cockpit-ready design. Fitted with a 24mm lug width and titanium sports bracelet, maintaining proportional balance for the 46mm diameter case.

Frequently asked questions

What is the lug width of the Breitling Cockpit B50 VB5010AW/BD41/155S/V20DSA.4?

The lug width of the Breitling Cockpit B50 VB5010AW/BD41/155S/V20DSA.4 is 24mm. This measurement is taken with a digital calliper at the point where the lugs meet the case, measuring the internal distance between the two horns. It is a deliberate design dimension consistent with the 46mm case diameter.

What is the best strap for the Breitling Cockpit B50 in titanium?

For the titanium-cased Cockpit B50, the most suitable materials are fine-grain calf leather in dark grey or midnight blue for material coherence, hornback alligator for an elegant contrast, and vulcanised rubber for sporting or humid environments. NATO straps in ballistic nylon also suit the model's aeronautical and military character particularly well.

How do you change the strap on a Breitling Cockpit B50?

The strap on the Breitling Cockpit B50 is replaced via standard 24mm spring bars housed in the case lugs. Using a springbar tool, compress the bars and slide out the original strap. It is advisable to rest the watch on a soft cloth to protect the brushed titanium finish during the operation. If in any doubt, entrust the task to a watchmaker or the Casati Milano atelier.

Are there aftermarket straps compatible with the Breitling Cockpit B50 VB5010AW/BD41/155S/V20DSA.4?

Yes, any strap with a 24mm lug width and standard spring bar fitting is compatible with the Breitling Cockpit B50 VB5010AW/BD41/155S/V20DSA.4. Milano Straps offers a dedicated selection of handcrafted 24mm straps in leather, rubber and nylon, made from premium materials and also available as bespoke pieces through the Casati Milano atelier.

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

The lifespan of a leather strap depends on the material and conditions of use. A vegetable-tanned calf leather strap, with moderate daily wear and protection from moisture, retains its structural and aesthetic integrity for 2 to 4 years. Alligator leather, owing to the density and robustness of its scales, tends to last longer. Milano Straps offers an 18-month guarantee against manufacturing defects.

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