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Breitling · Navitimer

Strap for Navitimer 01 46 Blacksteel / Black / Rubber

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

22mm
22 mm strapsAll Breitling
Lug width22 mm
Case diameter46 mm
ReferenceMB0128221B1S1 (aka: MB012822.BE51.252S)
FamilyNavitimer
MovementBreitling caliber B01 hours, minutes, small seconds | date | Chronograph, column wheel | chronometer
Year2016
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

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Straps for the Navitimer MB0128221B1S1 (aka: MB012822.BE51.252S)

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Navitimer MB0128221B1S1 (aka: MB012822.BE51.252S), seen from the bench

The Breitling Navitimer 01 46 Blacksteel (ref. MB0128221B1S1) is a 46mm stainless steel chronograph with a 22mm lug width, featuring the in-house Caliber B01 movement with column wheel, Swiss lever escapement, 70-hour power reserve, and COSC chronometer certification. Originally designed in 1952 as a professional pilot's tool with a rotating calculator bezel, this contemporary version maintains the iconic crowded dial with hour, minute, small second at 9 o'clock, date at 3 o'clock, and chronograph subdials. Water-resistant to 30 metres with a screw-down case back, the Navitimer remains an operational instrument for the modern wrist.

Frequently asked questions

What is the lug width of the Breitling Navitimer MB0128221B1S1?

The Breitling Navitimer MB0128221B1S1 has a lug width of 22mm. This measurement is standard across the 46mm Navitimer family and is shared by many high-end sport watches, ensuring wide availability of quality aftermarket straps.

What is the best strap for the Breitling Navitimer MB0128221B1S1?

Given the visual complexity of the Navitimer dial, the most complementary options are a square-scale alligator strap in tobacco or navy, a vegetable-tanned calf leather strap for everyday wear, or a vulcanised rubber strap for sporting use. A brushed steel deployant clasp in 22mm ensures visual symmetry with the case.

How do I change the strap on the Breitling Navitimer MB0128221B1S1?

The Navitimer MB0128221B1S1 uses standard 22mm spring bar attachment. A fork-tip or pointed spring bar tool is sufficient to compress the bars without scratching the lugs. It is advisable to work on a soft surface and, if in doubt, to consult a watchmaker or the Casati Milano atelier.

Are there aftermarket straps compatible with the Breitling Navitimer MB0128221B1S1?

Yes. Any 22mm strap with standard spring bars is compatible with the Navitimer MB0128221B1S1. Milano Straps offers a curated selection of handcrafted straps in alligator, calf leather, shell cordovan and NATO weave, specifically suited to this lug width and sized for a 46mm case.

How long does a leather strap last on a Breitling Navitimer MB0128221B1S1?

Longevity depends on the material and frequency of use. A quality alligator strap, maintained with neutral leather cream, typically lasts 3–5 years with daily wear. Vegetable-tanned calf develops a patina over time but is more susceptible to moisture. Shell cordovan is the most durable of the fine leathers, often exceeding 5 years. Casati Milano provides 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