Premier Heritage B09 Chronograph 40 Red Gold / Silver

In Context

At 40 mm it is sized to the current mainstream: 40 mm is the median across every watch measured in this catalogue. The case back is open, so the movement is visible without taking the watch apart, and the sapphire crystal will resist everything short of deliberate abuse. 100 m is genuine swimming resistance — more than the shape of this watch suggests it would need.

The movement is hand-wound, so winding it becomes part of the day rather than something the watch does for you. 70 hours of reserve is enough to set it down on Friday evening and find it still running on Monday. At 28,800 vph the seconds hand advances 8 times a second.

RB0930371G1P1 stands on its own in this catalogue — no other reference here shares its base number. It pairs a silver matte dial with a red gold case. Introduced in 2021. Beyond the time it carries a chronograph.

The hand-wound version of Breitling's in-house B01: the same column wheel and vertical clutch with the automatic winding taken out. Breitling built it for the heritage pieces where a rotor would either hide the movement or contradict the original — the Premier B09 and the Navitimer 806 re-edition. Like the B01 it is chronometer-certified, and the vertical clutch starts the chronograph hand without a flinch.

12 other watches in the library run the Breitling Caliber B09.

Breitling

AVI Ref. 765 1964 Re-Edition Stainless Steel

AB09451A1B1X1 · 41.1 mm

Breitling

AVI Ref. 765 1953 Re-Edition Platinum

LB0920131C1X1 · 41.1 mm

Breitling

AVI Ref. 765 1953 Re-Edition Pink Gold

RB0920131B1X1 · 41.1 mm

Breitling

Navitimer Ref 806 1959 Re-Edition Stainless Steel

AB0910371B1X1 · 43 mm