Shown: reference JB2120A61B1P1 · Photo: Breitling
Breitling

Premier Heritage B21 Chronograph Tourbillon JB2120 Reference JB2120A61B1P1

Premier Heritage B21 Chronograph Tourbillon Gaston Breitling

Overview

The Breitling Premier Heritage B21 Chronograph Tourbillon JB2120 comes in a 42 mm white gold case with a grey dial. Inside is the self-winding Breitling calibre B21, which has a 55 hour power reserve. The watch is water resistant to 100 metres. One reference is listed, JB2120A61B1P1.

Case diameter
42 mm
15.25 mm thick
Movement
Calibre B21
Water resistance
100 m
Power reserve
Approx. 55 hours

Specifications

Specifications from Breitling and WatchBase. Last checked . Sources

Case

Diameter
42 mm
Thickness
15.25 mm
Lug width
22 mm
Material
White gold
Crystal
Sapphire
Case back
Open
Water resistance
100 m
Weight
155 g
Crown
Non screw-locked, two gaskets
Bezel
Fixed

Dial

Colour
Grey

Movement

Type
Automatic
Power reserve
Approx. 55 hours
Jewels
30
Frequency
28,800 vph (4 Hz)

Bracelet or strap

Bracelet or strap
Black alligator leather strap
Clasp
Folding clasp 18k white gold

Not yet recorded: lug-to-lug, shape, indexes, hands, functions, years.

Sources

  • Breitling: case, water resistance, dial, movement, bracelet. View sources
  • WatchBase: case, water resistance, dial, movement. View sources

Missing values are shown as not yet recorded, never estimated. How we source our data

MovementBreitling calibre B21Specifications and every watch that uses it

Premier Heritage B21 Chronograph Tourbillon JB2120 questions

What size is the Breitling Premier Heritage B21 Chronograph Tourbillon JB2120?

The Breitling Premier Heritage B21 Chronograph Tourbillon JB2120 has a 42 mm case.

What movement does the Breitling Premier Heritage B21 Chronograph Tourbillon JB2120 use?

It uses the Breitling calibre B21.

What is the Breitling Premier Heritage B21 Chronograph Tourbillon JB2120 case made of?

The case is white gold.

Is the Breitling Premier Heritage B21 Chronograph Tourbillon JB2120 water resistant?

It is rated to 100 m.