Breitling · Navitimer

Strap for Navitimer Rattrapante Stainless Steel / Black / Croco / Folding

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

Lug width24 mm
Case diameter45 mm
ReferenceAB031021/BF77/755P/A20D.1
FamilyNavitimer
MovementBreitling caliber B03 hours, minutes, small seconds | date | Chronograph, column wheel, Rattrapante | chronometer
Year2018
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 Navitimer AB031021/BF77/755P/A20D.1

Selected for the 24 mm lug width · workshop selection

All 24 mm straps →

The Navitimer AB031021/BF77/755P/A20D.1, seen from the bench

The Navitimer represents one of the benchmark pilot's chronographs in Breitling's production, equipped with the in-house B03 caliber featuring a split-seconds function and chronometer certification. The movement incorporates a column-wheel and displays hours, minutes, small seconds, date, and chronograph. The case features 24mm lugs for the strap.

Frequently asked questions

What is the lug width of the Breitling Navitimer AB031021/BF77/755P/A20D.1?

The lug width is 24mm. This width is the standard for large chronographs such as the 45mm Navitimer, ensuring balanced proportions and correct weight distribution on the wrist. Always measure from inside to inside between the two lugs at the widest point to verify strap compatibility.

Which strap should I choose for the Breitling Navitimer AB031021/BF77/755P/A20D.1?

The Navitimer demands straps that respect its instrumental nature. We recommend alligator in deep blue, vegetable-tanned calf in tobacco or brown tones, or high-density rubber in black for the pure aviator approach. Avoid colourful or showy straps: the chronograph must remain the protagonist.

How do I change the strap on the Breitling Navitimer AB031021/BF77/755P/A20D.1?

Position the watch face up, identify the transverse pins (spring bars) connecting the strap to the case. Use a dedicated tool, such as a spring bar extractor, to release the pin from one side. Remove the old strap and insert the new one, ensuring the pin clicks into position in both holes of the new band. Proceed carefully to avoid scratching the case.

Does the Breitling Navitimer AB031021/BF77/755P/A20D.1 accept aftermarket straps?

Yes, the Navitimer is fully compatible with quality 24mm aftermarket straps. We recommend artisanal leather straps from premium sources, always verifying that the end links fit the case lugs perfectly without forcing or excessive play.

How long does a leather strap last on the Breitling Navitimer?

A quality artisanal leather strap lasts approximately 3–5 years with daily wear, depending on the material and care. Vegetable-tanned leather, if properly maintained with occasional hydration, develops a patina that improves over time. A rubber strap lasts 2–4 years before losing elasticity. The 18-month artisanal warranty covers 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