Breitling · Navitimer

Strap for Navitimer 1 B01 Chronograph 43 Red Gold / Blue / Croco / Folding

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
ReferenceRB0121211C1P4
FamilyNavitimer
MovementBreitling caliber B01 hours, minutes, small seconds | date | Chronograph, column wheel | chronometer
Year2018
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 RB0121211C1P4

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Navitimer RB0121211C1P4, seen from the bench

The Navitimer 1 B01 Chronograph 43 Red Gold is reference RB0121211C1P4, featuring a 43 mm diameter case in 18k red gold with a stratified dial and circular slide-rule bezel for aviation calculations. The watch is powered by the Breitling B01 manufacture chronograph movement with column wheel, COSC-certified chronometer, offering over 70 hours power reserve. The 22 mm lug width accommodates curved-end straps to match the case's characteristic geometry and ensure proper fit against the red gold case and matching bracelet.

Frequently asked questions

What is the lug width of the Breitling Navitimer RB0121211C1P4?

The lug width of the Breitling Navitimer RB0121211C1P4 is 22 mm. This measurement is taken with a digital calliper placed between the two lugs, in contact with the inner walls. The Navitimer's lugs feature a distinctive curve that requires curved-end straps to ensure a proper fit against the 18-carat red gold case.

What is the best strap for the Breitling Navitimer RB0121211C1P4 in red gold?

For an 18-carat red gold case such as that of the Navitimer RB0121211C1P4, the most fitting materials are carré-grain alligator in bordeaux or cognac tones, vegetable-tanned calfskin in bottle green or midnight blue for a refined contrast, and shell cordovan for understated elegance. A deployant clasp in red gold or gold PVD completes the pairing with formal coherence. NATO nylon straps are stylistically incongruous with a precious metal version.

How do you change the strap on a Breitling Navitimer RB0121211C1P4?

To replace the strap on the Navitimer RB0121211C1P4, a fine-tipped spring bar tool is required. The 22 mm spring bars are released by leveraging the inner lug channel with the hooked tip of the tool. Given the curved lug geometry, care should be taken to avoid scratching the red gold case. Alternatively, Casati Milano offers a strap-fitting service at the atelier by appointment.

Are there aftermarket straps compatible with the Breitling Navitimer RB0121211C1P4?

Yes. The Breitling Navitimer RB0121211C1P4 accepts 22 mm aftermarket straps with curved ends to match the lug geometry. Milanostraps.it offers a curated selection of compatible 22 mm straps in alligator, calfskin, shell cordovan, and rubber, with a choice of buckle or deployant clasp. Casati Milano bespoke straps are crafted to specification, tailored to the Navitimer's lug profile.

How long does a leather strap last on a Breitling Navitimer RB0121211C1P4?

The lifespan of a leather strap depends on the material, care routine, and frequency of use. A quality alligator or shell cordovan strap, treated with natural waxes and kept away from excessive moisture and perspiration, will retain its structural and aesthetic integrity for 3 to 5 years with daily wear. Casati Milano straps carry an 18-month guarantee against manufacturing defects. Rotating between multiple straps and applying a leather conditioner periodically will extend their service life significantly.

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