Breitling · Navitimer

Strap for Navitimer B01 Chronograph 41 Red Gold - Diamond / White / Alligator

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

Lug width22 mm
Case diameter41 mm
ReferenceRB0139631G1P1
FamilyNavitimer
MovementBreitling caliber B01 hours, minutes, small seconds | date | Chronograph, column wheel | chronometer
Year2023
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 RB0139631G1P1

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Navitimer RB0139631G1P1, seen from the bench

The Navitimer B01 Chronograph 41 Red Gold (ref. RB0139631G1P1) combines Breitling's aviation heritage since 1952 with exclusive craftsmanship. The 41mm case in 18-karat red gold houses the in-house Caliber B01, an automatic chronograph movement with column wheel, 28,800 vph frequency, approximately 70-hour power reserve, and COSC chronometer certification. The watch features a circular slide rule bezel, three subdials, and sapphire crystal with anti-reflective treatment, offering water resistance to 30 metres. The 22mm lug width ensures compatibility with a wide selection of aftermarket straps.

Frequently asked questions

What is the lug width of the Breitling Navitimer RB0139631G1P1?

The lug width of the Breitling Navitimer RB0139631G1P1 is 22mm. This measurement is taken with a digital calliper between the inner edges of the lugs at the strap attachment point. It is a standard dimension across the current Navitimer generation, ensuring broad compatibility with quality aftermarket straps.

What is the best strap for the Breitling Navitimer RB0139631G1P1 in Red Gold?

For the Red Gold version, the most appropriate choice is a vegetable-tanned alligator strap in Bordeaux, Cognac or dark Chocolate. The belly grain of alligator visually complements the complexity of the Navitimer dial, while the natural patina of vegetable tanning develops a chromatic depth consistent with the warm tones of rose gold. Shell cordovan is a refined alternative for those who prefer a dense, non-porous surface with a natural lustre.

How do I change the strap on the Breitling Navitimer RB0139631G1P1?

The strap on the Navitimer RB0139631G1P1 is removed using a fine-tipped spring bar tool, inserted into the groove of the spring bar that secures the strap to the lugs. Care should be taken to avoid scratching the Red Gold case: work on a soft cloth and use a tool with a coated tip. The new 22mm strap is fitted by compressing the spring bar and snapping it into the lug holes.

Are there aftermarket straps compatible with the Breitling Navitimer RB0139631G1P1?

Yes. Any strap with a 22mm attachment width is technically compatible with the Navitimer RB0139631G1P1. Milano Straps offers a curated selection of handcrafted 22mm straps — in alligator, calf leather, shell cordovan and rubber — finished to standards suited to high-end chronographs. Compatibility refers to the lug width; it is also advisable to verify the taper and spring bar length against the original case.

How long does a leather strap last on a Breitling Navitimer RB0139631G1P1?

A quality leather strap — alligator or vegetable-tanned calf — has an average lifespan of 2 to 4 years with regular wear, depending on exposure to perspiration, water and UV light. Vegetable-tanned leather tends to develop patina and stiffen over time if left untreated; periodic conditioning with a natural wax-based cream significantly extends the strap's life. Alternating between straps is the most effective way to preserve structural integrity.

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.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only