Breitling
Breitling Transocean Day & Date A45310121B1A1
The Breitling Transocean Day & Date (reference A45310121B1A1) is a stainless steel watch with a black dial.
Specifications
Case
- Reference
- A45310121B1A1
- Collection
- Transocean
- Case material
- Stainless steel
- Bracelet / strap
- Milanese
Dial and bezel
- Dial
- Black
Dial versions
This reference was made with these dials and finishes.
A45310121B1A1 Black
Black
How it compares within the Transocean family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| A45310121B1A1 (This watch) | — | Stainless steel | Black | — | — |
| A45310121G1A1 | — | Stainless steel | Silver | — | — |
| A453109T.C921.154A | — | Stainless steel | Blue | — | — |
| AB0510U4.BE84.105W | — | Stainless steel | Black | — | — |
| AB0510U4.BE84.760P | — | Stainless steel | Black | — | — |
| AB0510U6.BC26.267S | — | Stainless steel | Black | — | — |
| R45310121B1P1 | — | Red gold | Black | — | — |
| RB0510U4.BB63.760P | — | Red gold | Black | — | — |
| RB0510V1.C880.746P | — | Red gold | Blue | — | — |
About the Transocean family
The Transocean was first introduced in 1958 as a dressier companion to the Navitimer. Breitling revived it in 2010 with a 43 mm chronograph powered by the in-house B01, and later added a 38 mm version and world-time models such as the Transocean Unitime.
The collection was discontinued around 2019. The catalog lists steel, red gold and steel and red gold references. Dealers identify the size and caliber from the reference and check the bracelet or strap and papers.
Quick answers
- What is the Breitling Transocean Day & Date A45310121B1A1 made of?
- The case is stainless steel. Bracelet or strap: Milanese.
Catalog facts checked October 2026.