Breitling · Endurance Pro
Strap for Endurance Pro Ironman World Championship 2025
Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Endurance Pro E823105A1M1S1
Selected for the 22 mm lug width · workshop selection
Matte Dark Brown Alligator Strap€195
Matte Black Alligator Strap€195
Matte Dark Gray Alligator Strap€195
Vintage Brown Calfskin Strap — Natural Patina€98
Vintage Olive Green Calf Leather Watch Strap€80
The Endurance Pro E823105A1M1S1, seen from the bench
Frequently asked questions
What is the lug width of the Breitling Endurance Pro E823105A1M1S1?
The Breitling Endurance Pro E823105A1M1S1 has a lug width of 22mm. This measurement is taken internally between the two lugs using a calliper, at the narrowest point of the channel. Compatible straps must have a straight 22mm end to ensure a correct, play-free fit.
What is the best strap for the Breitling Endurance Pro E823105A1M1S1?
It depends on intended use. For sports performance, vulcanised rubber is the most functional choice. For business-casual settings, vegetable-tanned calfskin develops a personal patina over time. For maximum elegance, matte alligator creates a deliberate contrast with the titanium case. A premium NATO strap remains truest to the model's original spirit.
How do you change the strap on the Breitling Endurance Pro E823105A1M1S1?
The strap is replaced via the spring bars fitted in the 22mm lugs. Using a spring bar tool or fork-tip screwdriver, compress and extract the spring bar, remove the old strap, and insert the new one. No case disassembly is required; the operation can be completed in a few minutes without specialist tools.
Are there aftermarket straps compatible with the Breitling Endurance Pro E823105A1M1S1?
Yes. Any straight-ended 22mm strap is technically compatible. milanostraps.it offers a curated selection of handcrafted leather, rubber and NATO straps sized specifically for 22mm lugs, including versions with steel or titanium deployant clasps. Compatibility is determined by the standard lug width, not by any Breitling proprietary fitting.
How long does a leather strap last on a sports watch like the Endurance Pro?
Longevity depends on exposure to perspiration, water and UV radiation. On a sports watch in intensive use, a mid-grade calfskin strap typically lasts 12–18 months. A high-quality alligator or shell cordovan strap, alternated with other straps and maintained with a leather conditioner, can exceed three years. Casati Milano provides an 18-month production defect guarantee on all handcrafted straps.
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
