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Breitling · AVI

Strap for Navitimer 8 B01 Chronograph 43 Stainless Steel / Blue / Black Croco

Takes 23 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

23mm
23 mm strapsAll Breitling
Lug width23 mm
Case diameter43 mm
ReferenceAB0117131C1P1 (aka: AB0117131C1P1, AB011713.C999.1010P)
FamilyAVI
MovementBreitling caliber B01 hours, minutes, small seconds | date | Chronograph, column wheel | 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

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The AVI AB0117131C1P1 (aka: AB0117131C1P1, AB011713.C999.1010P), seen from the bench

The Breitling AVI AB0117131C1P1 is a 43mm stainless steel chronograph rooted in the legendary 1953 Ref. 765 AVI cockpit instrument. It features the in-house Breitling B01 column-wheel movement with 28,800 vph balance, 70-hour power reserve, and COSC chronometer certification. The watch includes hours, minutes, small seconds at 9 o'clock, date, and integrated chronograph function. The 23mm lug width is a defining specification of this Breitling aviator line, requiring precise strap selection.

Frequently asked questions

What is the lug width of the Breitling AVI AB0117131C1P1?

The Breitling AVI AB0117131C1P1 has a lug width of 23mm. This is a non-standard size requiring specific straps: 22mm or 24mm straps will not fit correctly and may damage the spring bars. It is advisable to verify the measurement with a digital calliper before purchasing an aftermarket strap.

What is the best strap for the Breitling AVI AB0117131C1P1?

For the Breitling AVI AB0117131C1P1, the materials most consistent with its aviator-tool DNA are: vegetable-tanned alligator leather for a formal-sport look, grain military calf for an authentic tool-watch aesthetic, vulcanised rubber for intensive use, and ballistic nylon NATO for maximum fidelity to the 1950s heritage. Optimal colour choices range from dark brown and cognac to olive green and matt black.

How do you change the strap on the Breitling AVI AB0117131C1P1?

To replace the strap on the Breitling AVI AB0117131C1P1, a fine-tipped spring bar tool is required. Insert the tip into the lug slot, compress the spring bar and slide the strap outward. Repeat on the other side. The new 23mm strap is fitted by compressing the spring bars and seating them into the lug holes. This can be done independently with the correct tools, or entrusted to a watchmaker.

Are there aftermarket straps compatible with the Breitling AVI AB0117131C1P1?

Yes, aftermarket straps compatible with the Breitling AVI AB0117131C1P1 are available, provided they meet the 23mm lug width specification. Milano Straps and Casati Milano atelier offer bespoke or catalogue straps in this size, with finishes and materials equivalent to or exceeding the original, including alligator, calf leather, shell cordovan and vulcanised rubber options.

How long does a leather strap last on the Breitling AVI AB0117131C1P1?

The lifespan of a leather strap depends on the material, tanning method and daily use. A quality vegetable-tanned alligator strap, with regular maintenance (conditioning cream every 2–3 months, protection from excessive moisture), can last between 3 and 6 years while retaining its structure and patina. Calf leather typically lasts 2–4 years. Shell cordovan, due to the density of its fibres, is among the most durable. The Casati Milano guarantee covers 18 months 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