Breitling · Endurance Pro

Strap for Breitling Endurance Pro 44 NFL San Francisco 49ers Edition

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

Lug width22 mm
Case diameter44 mm
ReferenceE823106A1B7S1
FamilyEndurance Pro
MovementBreitling caliber Caliber 82 Foudroyante Seconds, Minutes, Small Seconds | Date | Chronograph | Chronometer
CaseTitanium

Spring bar

Swiss Standard universal spring bars

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

Straps for the Endurance Pro E823106A1B7S1

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Endurance Pro E823106A1B7S1, seen from the bench

The Breitling Endurance Pro 44 NFL San Francisco 49ers Edition (ref. E823106A1B7S1) is a professional sports instrument built on titanium construction with a 44mm case diameter and 22mm lug width. It features the Caliber 82 SuperQuartz movement, a thermo-compensated chronometer with COSC certification achieving ±0.07 seconds per day precision. The watch includes a complete chronograph with Foudroyante Seconds complication, small seconds subdial, date window, and chronometer function, designed for ultra-endurance athletes in triathlon, cycling, and trail running. Water-resistant to 100 meters with a curved lug design for wrist ergonomics during movement.

Frequently asked questions

What is the lug width of the Breitling Endurance Pro E823106A1B7S1?

The lug width of the Breitling Endurance Pro E823106A1B7S1 is 22mm. This measurement is critical both for replacing the original strap and for selecting aftermarket alternatives. To verify it accurately, use a digital calliper placed between the two lugs, perpendicular to the longitudinal axis of the watch.

What is the best strap for the Breitling Endurance Pro titanium 44mm?

The ideal choice depends on the intended use. For sport and physical activity, a vulcanised rubber or technical caoutchouc strap offers optimal resistance to perspiration and water. For everyday urban wear, vegetable-tanned calf leather with a matte finish develops a distinctive patina over time. For formal occasions, matte alligator in dark tones creates a refined contrast against the brushed titanium case.

How do you change the strap on the Breitling Endurance Pro E823106A1B7S1?

The strap is removed using a fine-tipped spring bar tool. Insert the tip into the lateral slot of the lug, compress the spring bar and slide it out. Take care not to scratch the titanium case: applying masking tape around the lug area before starting is advisable. The full replacement takes approximately two minutes per side.

Are there aftermarket straps compatible with the Breitling Endurance Pro 22mm?

Yes. Any strap with a 22mm attachment is technically compatible with the Breitling Endurance Pro, provided the ends are shaped to suit the curvature of the lugs. Milanostraps.it offers a curated selection of handcrafted 22mm straps in various materials — leather, alligator, NATO, rubber — made to fit this case precisely.

How long does a leather strap last on a sports watch like the Breitling Endurance Pro?

Longevity depends on frequency of use and exposure to perspiration, water, and UV radiation. A quality calf leather strap used daily without intensive sport activities can last between two and four years while retaining good structural integrity. For prolonged sporting use, it is advisable to alternate it with a rubber or NATO strap. Vegetable-tanned leather develops a patina over time that enhances its aesthetic character, but requires periodic conditioning with a leather nourishing cream.

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