Breitling · Endurance Pro

Strap for Endurance Pro El Paradiso Orange

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
ReferenceX823104A1B1S1
FamilyEndurance Pro
MovementBreitling caliber Caliber 82 Foudroyante Seconds, Minutes, Small Seconds | Date | Chronograph | Chronometer
CaseTitaplast, Stainless 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 Endurance Pro X823104A1B1S1

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Endurance Pro X823104A1B1S1, seen from the bench

The Breitling Endurance Pro X823104A1B1S1 is a 44mm sports chronograph in Titaplast, a proprietary composite combining fibreglass and thermoplastic polymers, with stainless steel structural components. It features the Breitling Calibre 82, a SuperQuartz™ movement with COSC-certified thermal variance, ensuring accuracy within ±15 seconds per year, and integrates chronograph functions with continuous seconds, minutes, small seconds and date. The 22mm lug width is standard for the Endurance Pro family, designed for compatibility with a wide range of aftermarket and OEM straps.

Frequently asked questions

What is the lug width of the Breitling Endurance Pro X823104A1B1S1?

The lug width of the Breitling Endurance Pro X823104A1B1S1 is 22mm. This measurement is standardised across the entire Endurance Pro family with a 44mm case and allows any aftermarket strap sized at 22mm to be fitted, provided the keeper and buckle are also of the same width.

What is the best strap for the Breitling Endurance Pro X823104A1B1S1?

It depends on intended use. For intensive sport, a vulcanised rubber or ballistic nylon NATO strap is the most practical choice. For hybrid sport-smart casual wear, a vegetable-tanned calf leather strap with contrast stitching complements the Titaplast case without undermining its technical character. For formal occasions, an alligator strap with a deployant clasp elevates the watch while remaining consistent with its engineering identity.

How do you change the strap on the Breitling Endurance Pro X823104A1B1S1?

The strap is removed using a springbar tool — a forked-tip instrument that compresses the springbars housed within the lugs. Insert the tip into the gap between the strap and the lug, compress the springbar and slide the strap outward. The process takes approximately two minutes and requires no specialist tools; however, if you are unfamiliar with the procedure, it is advisable to seek assistance from a watchmaker or a specialist atelier.

Are there aftermarket straps compatible with the Breitling Endurance Pro X823104A1B1S1?

Yes. Any strap with a 22mm attachment is compatible with the Endurance Pro X823104A1B1S1, provided the springbars have the correct diameter (typically 1.8mm) and the lug length is appropriate for the case architecture. Milano Straps offers a curated selection of handcrafted 22mm straps in leather, alligator, rubber and NATO, specifically designed for high-specification sport chronographs.

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

Longevity depends on exposure to perspiration, water and heat. A quality vegetable-tanned calf leather strap, used regularly but not under extreme sport conditions, typically lasts 2–4 years before showing significant wear. For intensive sport use, a rubber or NATO strap is recommended due to its superior moisture resistance. With proper care — avoiding prolonged immersion and allowing the strap to dry between uses — a premium leather strap can develop a distinctive patina that enhances its aesthetic appeal over time.

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