Breitling
Breitling Endurance Pro 44 Ironman World Championship 70.3 2026 E823107A1O1S1
The Breitling Endurance Pro 44 Ironman World Championship 70.3 2026 (reference E823107A1O1S1) is a 44 mm watch.
Specifications
Case
- Reference
- E823107A1O1S1
- Collection
- Endurance Pro
- Case size
- 44 mm
Dial versions
This reference was made with these dials and finishes.
E823107A1O1S1
E823107A1O1S1
How it compares within the Endurance Pro family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| E823107A1O1S1 (This watch) | 44 mm | — | — | — | — |
| E823101A1I1S1 | — | — | — | — | — |
| E823103A1M1S1 | — | — | — | — | — |
| X82310 | 44 mm | Breitlight | Black / White | 82 | 2020– |
| X833101A1A1S1 | 38 mm | — | — | — | — |
| X833105A1B1S1 | 38 mm | — | — | — | — |
| X83310D41B1S1 | 38 mm | — | — | — | — |
| X83310D91B2S1 | 38 mm | — | — | — | — |
| X83310F61B1S1 | 38 mm | — | — | — | — |
About the Endurance Pro family
The Endurance Pro was introduced in 2020 as a light sports chronograph for athletes, with a case in Breitlight, Breitling's own composite material, which is lighter than titanium, and a coloured rubber strap.
It uses the Breitling 82 SuperQuartz caliber, a thermocompensated quartz chronograph movement. The catalog lists the many colour versions. Dealers identify the colour from the reference and check the strap and the papers.
Quick answers
- What size is the Breitling Endurance Pro 44 Ironman World Championship 70.3 2026 E823107A1O1S1?
- The Breitling Endurance Pro 44 Ironman World Championship 70.3 2026 E823107A1O1S1 has a 44 mm case.
Catalog facts checked October 2026.