The Basics

Horological Machine No.6 (HM6) ‘Space Pirate’ has been designed to operate in the hostile environment of space: the space on your wrist. In each of the four corners of HM6’s biomorphic case is a 360° sphere, capped top and bottom by transparent sapphire crystal domes. Up forward, two semi-spherical indications rotate vertically, displaying hours and minutes. Back aft, driven through multiplying gearing by the automatic winding rotor, twin spherical turbines spin horizontally, automatically regulating the winding system in case of excessive speed to reduce stress and wear. The transparent central dome houses a 60-second flying tourbillon, the precision regulator of HM6’s Engine. This flying tourbillon can be protected from UV radiation, which speeds up oxidation of lubricating oils, by a retractable shield operated by a crown on the left side of the case. While the transparent cupola on top of HM6 Space Pirate offers a tantalising glimpse into the sophisticated Engine below, the sapphire crystal display portal on the back reveals more of the 475 finely finished components making up the highly complex movement, which required over three years of development. Also visible through the display back is part of the winding mechanism and the platinum 950 winding battle-axe rotor. HM6 ‘Space Pirate’ is available now in two limited editions: HM6 Ti in Ti-6Al-4V titanium (50 pieces) and HM6 RT in 18K 5N+ red gold and Ti-6Al-4V titanium (18 pieces). There will only be 100 HM6 movements made in total. Dimensions: 49.5 mm x 52.3 mm x 20.4 mm

Brand: MB&F
Family: Horological Machines
Reference: 60.RL.B
Name: Horological Machine N°6 Space Pirate HM6 RT
Produced: 2015
Limited: Yes, 18 units

Below is a detailed look at MB&F’s model 60.RL.B from Horological Machines watch family, including the price, case details and movement features.

MB&F Horological Machines 60.RL.B

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The Details

MB&F’s Horological Machine N°6 Space Pirate HM6 RT (60.RL.B) was originally released in 2015. This watch features a hand-wound movement beating at a frequency of 18000 bph ( 3 Hz) to provide a 72-hour power reserve when fully wound.

The Case

The titanium, red gold case measures 49.5mm in diameter and roughly 20.4mm thick. The round case is paired with a black color dial with proprietary-shaped hands, and a arabic numerals hour markers and minute track, covered by a sapphire glass. MB&F’s Horological Machines model 60.RL.B is water resistant up to 30 meters (98 ft). A display caseback is over the back of the watch case.

Material: Titanium, Red Gold
Glass: Sapphire
Back: Display
Shape: Round
Diameter: 49.5mm
Height: 20.4mm
Lug Width: N/Amm
W/R: 30

Case Diameter

Case Thickness

Lug Width

Water Resistance

The Movement

The Horological Machines 60.RL.B movement is a powered by caliber HM6 made by MB&F. The 68-jewel hand-wound movement is mm in diameter. Its balance wheel oscillates at 18,000 semi-oscillations per hour or 3 Hz. This movement offers a 72-hour power reserve.

Type: Hand-Wound
Brand: MB&F
Caliber: HM6
Base: N/A
Display: Analog
Diameter: mm
Jewels: 68
Reserve: 72 hours
Frequency: 18000 bph
Time: Hours, Minutes
Additionals: Tourbillon Escapement

The Price

How much does the MB&F’s Horological Machines 60.RL.B cost? This watch was introduced in 2015 and has been in MB&F’s collection for around . This watch is a limited edition with just 18 pieces released. As with most luxury watches, the price of depends on the availability and demand.

CURRENT PRICE: Not Available

For more information, visit MB&F online.


  • Brand: MB&F
  • Model: Horological Machine N°6 Space Pirate HM6 RT
  • Reference Number: 60.RL.B
  • Limited: Yes, 18 units

Case & Dial:

  • Material: Titanium, Red Gold
  • Glass: Sapphire
  • Back: Display
  • Diameter: 49.5
  • Thickness: 20.4
  • Lug Width: N/A
  • Dial Color: Black
  • Indexes: Arabic Numerals and Proprietary-shaped hands
  • Water Resistance: 30 meters


  • Winding: Hand-Wound
  • Brand: MB&F
  • Caliber: HM6
  • Display: Analog
  • Diameter: mm
  • Jewels: 68
  • Power Reserve: 72 hours
  • Frequency: 18000 bph
  • Functions: Hours, Minutes

About MB&F

MB&F logo

Maximilian Busser and Friends, normally shortened down to MB&F, is a Swiss watch brand founded by Maximilian Busser in July 2005 and based in Geneva, Switzerland.

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