The Basics

For the HM8, MB&F found its inspiration in the Canadian-American Challenge Cup -Can-Am-, a racing series that ran from 1966 to 1987, featuring big names like McLaren, Lola, Chaparral, BRM, Shadow and Porsche. The cars ran engines with up to 1.000 horse powe – almost twice the amount found in contemporary F1 cars. The lines of the racing cars are easily recognized in the curvaceous yet angular case of the HM8. In case of the 80.RTL.B, it is done in red gold with titanium ‘roll bars’. Time is indicated through a ‘prism indicator module’, not unlike LED watches of the 1970’s from the likes of Girard-Perregaux and others. As such it is somewhat fitting that the base movement of the HM8 is supplied by Girard-Perregaux. While its ‘Battle Axe’ rotor is reminiscent of the HM3, the reflecting hours and minutes are similar to those found on the HM5 – and five plus three is eight. Dimensions: 49 mm x 51.5 mm x 19 mm.

Brand: MB&F
Family: Horological Machines
Reference: 80.RTL.B
Name: Horological Machine N°8 HM8 Can-Am Red Gold
Produced: 2016
Limited: No

Below is a detailed look at MB&F’s model 80.RTL.B from Horological Machines watch family, including the price, case details and movement features.

MB&F Horological Machines 80.RTL.B

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The Details

MB&F’s Horological Machine N°8 HM8 Can-Am Red Gold (80.RTL.B) was originally released in 2016. This watch features a automatic movement beating at a frequency of 28800 bph ( 4 Hz) to provide a 42-hour power reserve when fully wound.

The Case

The titanium, red gold case measures 49mm in diameter and roughly 19mm 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 80.RTL.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: 49mm
Height: 19mm
Lug Width: N/Amm
W/R: 30

Case Diameter

Case Thickness

Lug Width

Water Resistance

The Movement

The Horological Machines 80.RTL.B movement is a powered by caliber HM8 made by MB&F. The 30-jewel automatic movement is mm in diameter. Its balance wheel oscillates at 28,800 semi-oscillations per hour or 4 Hz. This movement offers a 42-hour power reserve.

Type: Automatic
Brand: MB&F
Caliber: HM8
Base: Girard-Perregaux GP03300
Display: Analog
Diameter: mm
Jewels: 30
Reserve: 42 hours
Frequency: 28800 bph
Time: Minutes, Jumping Hours

The Price

How much does the MB&F’s Horological Machines 80.RTL.B cost? This watch was introduced in 2016 and has been in MB&F’s collection for around . This watch is not a limited release. As with most luxury watches, the price of depends on the availability and demand.


For more information, visit MB&F online.


  • Brand: MB&F
  • Model: Horological Machine N°8 HM8 Can-Am Red Gold
  • Reference Number: 80.RTL.B
  • Limited: No

Case & Dial:

  • Material: Titanium, Red Gold
  • Glass: Sapphire
  • Back: Display
  • Diameter: 49
  • Thickness: 19
  • Lug Width: N/A
  • Dial Color: Black
  • Indexes: Arabic Numerals and Proprietary-shaped hands
  • Water Resistance: 30 meters


  • Winding: Automatic
  • Brand: MB&F
  • Caliber: HM8
  • Display: Analog
  • Diameter: mm
  • Jewels: 30
  • Power Reserve: 42 hours
  • Frequency: 28800 bph
  • Functions: Minutes, Jumping Hours

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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