Breitling B20
ProbableThe product of a supply arrangement running in both directions: Tudor supplies Breitling this automatic and Breitling supplies Tudor a chronograph based on the B01. Worth recording because the designation invites the assumption that a B-number is a Breitling design, and here it is not — the correct expectation inside is a Tudor architecture carrying Breitling marks.
Specifications
- Movement manufacturer
- Breitling
- Base caliber
- Tudor MT5612
- Production
- 2017–present
- Frequency
- 28,800 vph (4 Hz)
- Power reserve
- 70 hours
- Winding
- automatic
- Complications
- Centre seconds · Date
- Certification
- COSC chronometer
Architecture
A Tudor MT56xx-family automatic supplied to Breitling, with a date and a roughly 70-hour reserve.
Related calibers
Built on
Tudor MT5612
References using this caliber
- Breitling AB2010121B1A1Factory
Superocean Heritage · Whole production
Provenance of this record
Sources & Evidence
Breitling — collection and manufacture caliber specifications
Breitling SA
- Accessed
- 2026-08-18
Cited for
Breitling collector research on Navitimer generations and reference numbering
Collector communities and specialist dealers
- Accessed
- 2026-08-18
Cited for
Last verified: Not yet reviewed