Breitling · Navitimer

Strap for Navitimer 01 43 Red Gold / Black Arabic / Calf / Pin

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

Lug width22 mm
Case diameter43 mm
ReferenceRB012012/BB07/433X/R20BA.1
FamilyNavitimer
MovementBreitling caliber Caliber B01 Hours, Minutes, Small Seconds | Date | Chronograph, Column wheel | Chronometer
CaseRed Gold

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 RB012012/BB07/433X/R20BA.1

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Navitimer RB012012/BB07/433X/R20BA.1, seen from the bench

The Navitimer is a Breitling chronograph equipped with the automatic B01 caliber, featuring a column-wheel and chronometer certification. The movement offers hours, minutes, small seconds, date and chronograph functions. The case features 22mm lugs for the strap.

Frequently asked questions

What is the lug width of the Breitling Navitimer RB012012/BB07/433X/R20BA.1?

The Breitling Navitimer RB012012/BB07/433X/R20BA.1 features a lug width of 22mm. This measurement refers to the internal distance between the two lugs on the case, which determines the compatible strap width. To verify this on your own piece, it is advisable to measure with a digital calliper close to the case, near the lug roots.

What is the best strap for the Navitimer RB012012/BB07/433X/R20BA.1 in Red Gold?

Given the 18-carat red gold case, the most congruous materials are alligator leather in cognac or tobacco tones, vegetable-tanned calfskin in tan or havana, and shell cordovan in bordeaux or mahogany. A deployant clasp in red gold completes the pairing by maintaining metallic coherence with the case. Stainless steel hardware is best avoided, as it creates an inelegant chromatic discontinuity with the warm gold tone.

How do you change the strap on a Breitling Navitimer with 22mm lugs?

To replace the strap on a Navitimer, a dedicated springbar tool is required — either a forked lug tool or a fine flat-blade screwdriver. Insert the tool into the lug slot, compress the springbar pin, and slide the strap free. Care must be taken to avoid scratching the red gold lugs; protecting the case with low-tack adhesive tape or entrusting the operation to a watchmaker is strongly recommended.

Are there aftermarket straps compatible with the 43mm Navitimer with 22mm lugs?

Yes. The 22mm lug width is a widely adopted standard, offering an extensive selection of quality aftermarket straps. MilanoStraps crafts bespoke straps in alligator, calfskin, shell cordovan and other materials at 22mm width, available with deployant or pin buckles in various colours and finishes suited to the red gold case of this reference.

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

The lifespan of a leather strap depends on hide quality, tanning method and daily wear conditions. A high-quality alligator or vegetable-tanned calfskin strap, cared for properly and rotated regularly with other straps, can last between three and six years while maintaining a respectable appearance. Frequent exposure to perspiration, water and heat accelerates deterioration. MilanoStraps straps carry an 18-month warranty 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