MB&F - 34.BTL.B

Horological Machine N°3 HM3 Moonmachine Black

Brand: MB&F
Family: Horological Machines
Reference: 34.BTL.B
Name: Horological Machine N°3 HM3 Moonmachine Black
Produced: 2012
Limited: Yes, 18 units


Material: Titanium
Coating: DLC
Glass: Sapphire
Back: Open
Shape: Round
Diameter: 47.00 mm
Height: 19.00 mm


Color: Black
Indexes: Arabic Numerals
Hands: Proprietary
34.BTL.B : MB&F Horological Machine N°3 HM3 Moonmachine Black


MOONMACHINE by Finnish watchmaker Stepan Sarpaneva is the first of the MB&F Performance Art pieces by a watchmaker – and the first to endow a Horological Machine with a new complication.

To create MOONMACHINE, Stepan has reconfigured HM3 Frog by 90° and added his iconic moon-face moon-phase indicator complication set in a scintillating firmament of northern stars.

Based on Stepan’s own face, the phase of the moon is displayed through a signature Korona-shaped aperture, while the mystery winding rotor takes the form of a steel and 22k gold disc with laser-pierced stars forming constellations visible in the northern sky.

HM3 Frog was chosen as the MOONMACHINE platform because the large movement opening in the dial side provides space for the watchmaker to play – and the bulbous indication domes of the Frog are reminiscent of how science fiction buffs have long imagined habitable domes on the Moon.

MOONMACHINE may portray the time in a playful manner, but there is nothing but serious attention to detail and care regarding the fine hand-finishing of the high-tuned engine purring within.

The multi-layered northern sky rotor adds a stunning background to the twin hand-finished moon faces and makes use of its motion to add vivacity to the moving stars.

MOONMACHINE is available in three limited editions of 18 pieces each: titanium case with white gold moon faces in a light blue sky, black titanium case with white gold moon faces in a dark blue sky and red gold case with red gold moon faces in an anthracite sky.


MB&F caliber HM3 Moonmachine Three-dimensional horological engine designed by Jean-Marc Wiederrecht/Agenhor;
Powered by a Sowind base, modified by Stepan Sarpaneva
Balance oscillating at 28,800 bph.
DLC coated and star-pieced steel and 22k gold automatic winding rotor
Hour and minutes information transmitted via ceramic ball bearings to rotating domes.
Number of jewels: 36 (all functional)
Number of components: 319

Movement is shown from the dial side.

Caliber:HM3 Moonmachine
Base: MB&F HM3
Reserve:45 h
Frequency:28800 bph
Time:Hours, Minutes, Day / Night Indication
Additionals:Power Reserve Indicator

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