Breitling
Breitling Premier Top Time B21 Chronograph Tourbillon Shelby Cobra SB21251A1C1X1
The Breitling Premier Top Time B21 Chronograph Tourbillon Shelby Cobra (reference SB21251A1C1X1) is a watch. It runs on the caliber B21.
Specifications
Case
- Reference
- SB21251A1C1X1
- Collection
- Top Time
Movement
- Caliber
- B21
Dial versions
This reference was made with these dials and finishes.
SB21251A1C1X1
How it compares within the Top Time family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| SB21251A1C1X1 (This watch) | — | — | — | B21 | — |
| A23310 | 41 mm | Stainless steel | Silver | 23 | 2020–2020 |
| A233111A1C1X1 | — | Stainless steel | — | — | — |
| A233112A1A1X1 | — | Stainless steel | — | — | — |
| AB0176 | 41 mm | Stainless steel | Green / Blue / White / Black / Copper | B01 | 2021– |
| AB01771A1B1X1 | — | Stainless steel | Black | B01 | — |
| AB01771A1L1X1 | — | Stainless steel | Green | B01 | — |
| AB3113 | 38 mm | Stainless steel | — | B31 | 2026– |
| NB21251A1L1X1 | — | — | — | B21 | — |
About the Top Time family
The Top Time was introduced in 1964 as a chronograph for young professionals, and some vintage models are known for bold dial designs. Breitling relaunched it in 2020 with references inspired by classic cars and partnerships.
The catalog includes chronographs with the in-house B01 and calibers such as 23, B21 and B31, in steel, red gold and steel and platinum. Dealers identify the edition, dial and caliber and check the strap and papers.
Quick answers
- What movement does the Breitling Premier Top Time B21 Chronograph Tourbillon Shelby Cobra SB21251A1C1X1 use?
- It uses the caliber B21.
Catalog facts checked October 2026.