Breitling · AVI

Strap for Navitimer 8 Automatic 41 Stainless Steel / Black / Black Calf

Takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width21 mm
Case diameter41 mm
ReferenceA17314101B1X1 (aka: A1731410.BG68.489X)
FamilyAVI
MovementBreitling caliber Caliber 17 Hours, Minutes, Seconds | Date
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

Straps for the AVI A17314101B1X1 (aka: A1731410.BG68.489X)

Selected for the 21 mm lug width

All 21 mm straps →

The AVI A17314101B1X1 (aka: A1731410.BG68.489X), seen from the bench

The Breitling AVI A17314101B1X1 is a 41 mm stainless steel automatic watch with Caliber 17 movement, inspired by the 1953 Ref. 765 AVI used by NATO fighter pilots during the Korean War. The tonneau case features engraved aircraft profiles, a textured sport dial with applied luminous indices, and a graduated bezel for calculating average speeds and flight times. Strap size is 21 mm.

Frequently asked questions

What is the lug width of the Breitling AVI A17314101B1X1?

The Breitling AVI A17314101B1X1 has a lug width of 21 mm. This is a non-standard measurement — differing from the more common 20 or 22 mm — so it is essential to verify this dimension with a digital calliper before purchasing a replacement strap. Measure directly between the two lugs at the point where they meet the case for an accurate reading.

What is the best strap for the Breitling AVI A17314101B1X1?

For the Breitling AVI A17314101B1X1 with its stainless steel case and dark dial, the most suitable materials are vegetable-tanned alligator leather (for an elegant vintage aesthetic), military-finish calfskin (for an authentic field look), and woven nylon NATO straps, which are historically coherent with the aviation spirit of the model. Vulcanised rubber is the preferred choice for intensive sporting use.

How do you change the strap on the Breitling AVI A17314101B1X1?

To replace the strap on the Breitling AVI A17314101B1X1, you will need a fine-tipped spring bar tool. Insert the tip into the slot on the inner side of the lug, compress the spring bar, and slide the strap outward. Repeat on the opposite side. Take care not to scratch the case: protect all surfaces with a soft cloth during the operation.

Are there aftermarket straps compatible with the Breitling AVI A17314101B1X1?

Yes, aftermarket straps compatible with the Breitling AVI A17314101B1X1 are available, provided they conform to the 21 mm lug width. Milanostraps.it offers a curated selection of handcrafted straps in various leathers and materials, made specifically for this reference. It is also important to check whether the strap end is straight or curved to ensure a proper fit against the case.

How long does a leather strap last on the Breitling AVI A17314101B1X1?

The longevity of a leather strap depends on the material, frequency of use, and care routine. A quality alligator strap, treated periodically with appropriate conditioners and kept away from prolonged moisture, can last between 3 and 7 years with daily wear. Calfskin typically has a shorter lifespan (2–4 years), whilst shell cordovan, owing to its dense fibre structure, tends to endure longer, developing a distinctive patina over time. Casati Milano offers 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