MB&F Horological Machine N°10 ‘Dark Bulldog’

MB&F has expanded the HM N°10 series by launching new ‘Dark Bulldog’ versions.

Originally introduced in 2020, Horological Machine N°10 ‘Bulldog’ celebrated the relationship between man and dog. The inauguration edition included two models. The first one has a grade 5 titanium body and blue “eyes”, and the second version features an 18K red-gold and titanium body with black “eyes”.

In 2022, HM10 Bulldog adds ‘Dark Bulldog’ versions in three colors to the collection, limited to 8 pieces each. These new models feature stainless steel black PVD cases with black, blue or red eyes.

The manual-winding engine of HM10 Bulldog was designed and developed in-house. The eye-catching balance, suspended beneath the central sapphire crystal dome and beating at 2.5Hz (18,000bph), was first appeared in Legacy Machine N°1 launched in 2011. The revolving time-telling domes of HM10 Bulldog originated in the conical hour- and minute-modules of the first Horological Machine N°3.

The MB&F HM10 engine offers 45 hours of power reserve, indicated by the opening and shutting of external hinged jaws.

The rounded, compact case measures 45mm across, 54mm from nose to tail and 24mm height. The two time-display domes (eyes) are made of colored aluminium. The sprung strap attachment “legs” of the watch allow the body to fit closely around the wrist, with the calf-leather strap fastened with either a folding buckle or Velcro system.

Technical details


Horological Machine N°10 ‘Bulldog’ is available in five versions:
– Ti version: grade 5 titanium case with blue hour and minute domes;
– RT version: 18K red gold and titanium case with black hour and minute domes;
– ‘Dark Bulldog’ versions: case in microblasted stainless steel with black PVD coating with black, blue or red hour and minute domes. Limited editions of 8 pieces each.

Manual-winding in-house movement
Bespoke flying 14mm balance wheel with four traditional regulating screws floating above the domed dials
Super-LumiNova on the hour and minute domes and markers
Single barrel with 45 hoursof power reserve
Frequency: 18,000bph / 2.5Hz
Number of components: 301
Number of jewels: 34
Left crown at 11 o’clock for winding; right crown at 1 o’clock for setting the time

Hours on left dome (aluminium dome rotating in 12 hours).
Minutes on right dome (aluminium dome rotating in 60 minutes).
Power reserve indicated in 3D by the opening and closing of the jaws (end of power reserve = closed jaws).

Ti version: grade 5 titanium.
RT version: 18K 5N+ red gold and grade 5 titanium.
‘Dark Bulldog’ versions: microblasted stainless steel with black PVD coating.
Dimensions: 54mm x 45mm x 24mm.
Water resistant to 5ATM / 50m / 160’

Sapphire crystals
2 sapphire crystals treated with anti-reflective coating on both sides.

Strap & buckle
RT version: hand-stitched brown calf-leather strap with custom-designed red gold folding buckle.
Ti version: hand-stitched blue calf-leather strap with Velcro system and titanium buckle.
‘Dark Bulldog’ versions: hand-stitched black calf-leather strap with Velcro system and titanium buckle.