Heero Bourdon Blue

01 / 01

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The deepest voice in the tower.

In a carillon the bourdon is the largest bell: it sounds lowest, carries furthest, and every other bell is tuned against it. Its blue is the deep and settled blue of that note.

On the dial it is a quiet colour that grows richer in low light, framed by the polished grade 5 titanium of the case.

Heero Bourdon Blue, closer

Technical characteristics.

The calibre in detail

Movement

Calibre
VBA01, Van Bergen manufacture
Winding
Automatic, recessed micro rotor
Rotor
Micro rotor
Height
2.5 mm
Frequency
5 Hz, 36,000 alternations per hour
Complication
Sonnerie au passage, striking twice each hour
Striking
The largest hammer ever set in a wristwatch
Finishing
Bevelled and polished by hand; Côtes de Genève, circular graining and perlage

Case

Diameter
41 mm
Material
Grade 5 titanium
Crystal
Sapphire
Case back
Sapphire, showing the hammer and gong
Water resistance
30 m, preserving the acoustic chamber
Engraving
Individual number on the case

Dial and bracelet

Dial
Bourdon Blue
Pattern
The Van Bergen checkerboard
Indications
Hours and minutes; the half hour, by sound
Bracelet
Grade 5 titanium, with quick change mechanism
Strap
Leather and rubber straps, in tones chosen for the dial, available separately

Edition and delivery

Edition
Heero Inaugural Edition, 230 numbered pieces
Presentation
A Van Bergen bell, a bronze replica of a prize-winning bell of 1862
Deliveries
From the first quarter of 2027
Acquisition
By private appointment, with the maison or an authorised partner
Calibre VBA01 seen through the sapphire case back

Calibre VBA01.

Turn the watch over. Through the sapphire case back the hammer and gong are there to be seen, and twice each hour the hammer falls without being asked. It is the largest hammer ever set in a wristwatch, carried by a movement only 2.5 mm high.

Height
2.5 mm
Frequency
5 Hz
Winding
Recessed micro rotor
Strike
Twice each hour
Discover the calibre
A Van Bergen bell, opened, with the Heero Bourdon Blue resting in its base

The presentation

Presented in a Van Bergen bell.

Every Heero is entrusted in person, at a private appointment, and arrives in a Van Bergen bell: a precise bronze replica of a prize-winning bell the family cast in 1862.

The family of bellfounders

The other models.

One of 230 Heero Forge Black

Inaugural Edition

Forge Black

41 mm, grade 5 titanium

€29,000Excluding VAT

One of 230 Heero Clapper Silver

Inaugural Edition

Clapper Silver

41 mm, grade 5 titanium

€29,000Excluding VAT

One of 230 Heero Viridian Green

Inaugural Edition

Viridian Green

41 mm, grade 5 titanium

€29,000Excluding VAT

One of 230 Heero Vesper Violet

Inaugural Edition

Vesper Violet

41 mm, grade 5 titanium

€29,000Excluding VAT

One of 59 Monaco Special Edition

Monaco Special Edition

Monaco Special Edition

41 mm, grade 5 titanium or 18K white gold

€32,500 or €79,000Excluding VAT

One of 10 World Caviar Awards Edition

World Caviar Awards Edition

World Caviar Awards Edition

41 mm, grade 5 titanium and 18K rose gold

€49,000Excluding VAT

A Van Bergen is received, not purchased.

Every piece is entrusted in person, at a private appointment with the maison or an authorised partner. It is presented in a Van Bergen bell, a bronze replica of a prize-winning bell the family cast in 1862, and first deliveries begin in the first quarter of 2027.

The Heero Forge Black on a black rubber strap

Click the watch to look closer