B09

	Brand:	Breitling
	Family:	Breitling B01 Family
	Height:
	Jewels:	47
	Reserve:	70 hours
	Frequency:	28,800 A/h
	Winding:	Hand winding
	Diameter:	30.00 mm (13.25 ligne)
	Complications:	2-Button, 6-Column Chronograph, Chronograph, Column Wheel Chronograph, Vertical Clutch Chronograph
	Hands:	30 Minute Chronograph Hand at 3:00, Central 60 Second Chronograph Hand, Central Hour Hand, Central Minute Hand, Small Seconds Hand at 9:00

Distinguishing Technical Characteristics
Hand-Winding Counter-Clockwise Balance Cock 6-Column Chronograph Balance at 4:30 Column Wheel at 10:30
Production: 2019 – Current
1910s	1920s	1930s	1940s	1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s

Calibre B09 is an hand-winding chronograph movement produced by Breitling since about 2019. It is the only version of Cal. B01 without a date display, and one of the very few hand-winding chronograph movements produced in modern times.

Breitling introduced their calibre 01 (commonly called Cal. B01) in April 2009 in the Chronomat. It is a modern automatic chronograph movement with a column wheel and vertical clutch. It operates at 28,800 A/h, boasts a power reserve of 70 hours, and is a COSC-certified chronometer. The movement shares many characteristics with the Rolex Cal. 4130, and it has been reported that many of the same engineers worked on both movements.

Functions and Complications

Cal. B09 is a modification of the hand-winding Cal. B02, which is itself based on Cal. B01. Unlike every other movement in the family, it lacks a date display.

Cal. B09 features the following displays on the dial:

• 30 minute chronograph counter at 3:00
• Small seconds at 9:00

Cal. B09 Applications

Breitling has only used Cal. B09 in a few models, all limited-edition historic re-editions.

• Breitling AVI Ref. 765 1953 Re-Edition
• Breitling Navitimer Ref. 806 1959 Re-Edition
• Breitling Premier Heritage

Breitling B01 Family Overview

Starting in 2017, Breitling began supplying a version of Cal. B01 to Tudor. The resulting movement, Cal. MT5813, has a free sprung balance with a silicon hairspring, as is common in modern Rolex and Tudor movements. It is also decorated differently. Strangely, it is often quoted as having different dimensions: 30.40 mm diameter and 7.23 mm thickness.