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MB&F Horological Machine 42 mm Blue 18k
MB&F Horological Machine 42 mm Blue 18k — Front view

Front view

Dial, hands and bezel as delivered.

MB&F Horological Machine 42 mm Blue 18k — Case-back view

Case-back view

Case-back engraving and, where fitted, the sapphire display.

MB&F Horological Machine 42 mm Blue 18k — Movement

Movement

Calibre with its finishing and decoration.

On the wrist

On the wrist

Worn shot for proportion and strap drape.

MB&F · Horological Machine

MB&F Horological Machine 42 mm Blue 18k

Reference 31266OR.79

Reference at a glance

Brand
MB&F
Collection
Horological Machine
Model
MB&F Horological Machine 42 mm Blue 18k
Reference number
31266OR.79
Year / era
2005 · 2000s — modern production
Complication
GMT / second time zone
Movement
In-house tourbillon, manual-winding
Case material
18k yellow gold
Dial type
Blue "Grande Tapisserie"
Strap / bracelet
Milanese mesh
Water resistance
150 m
Limited-edition status
Regular production, not a limited edition
Compare this reference

Case, dial & bracelet

Case dimensions
42 mm
Case thickness
12.6 mm
Case material
18k yellow gold
Bezel
Bidirectional 24-hour Cerachrom
Crystal
Sapphire with internal AR treatment
Dial
Blue "Grande Tapisserie"
Hands
Faceted dauphine hands, polished by hand
Indexes
Applied faceted white-gold indexes
Bracelet / strap
Milanese mesh
Clasp / buckle
Titanium deployant clasp
Water resistance
150 m

Movement

Movement / calibre
Calibre 17E — In-house tourbillon, manual-winding
Movement type
High-frequency automatic
Frequency
25,200 vph (3.5 Hz)
Power reserve
70 hours
Number of jewels
37 jewels
Complications
GMT / second time zone
Functions
Chronograph, tachymeter, date
Watchmaker
Assembled and regulated by a single watchmaker, who signs off the piece before casing.

Production & market

Production period
2005 – 2020
Limited-edition quantity
Not applicable
Current market information
Values have stabilised after the 2022 correction; condition and box-and-papers drive the premium.

Designer

Marc Newson

Marc Newson is an Australian industrial designer whose work spans Qantas cabins, Apple hardware and Jaeger-LeCoultre's Atmos clocks; his watch design reduces the object to pure geometry and legibility.

Historical significance

MB&F Horological Machine 42 mm Blue 18k sits within MB&F's Horological Machine line, introduced in 2005. It carries the house codes established since 2005 — 18k yellow gold case, blue "grande tapisserie" dial and in-house tourbillon, manual-winding — and is one of the references collectors use to date the evolution of the collection.

Interesting facts

  • Early production dials show a slightly different minute track, and collectors pay a premium for them.
  • The case is finished by hand, alternating polished and satin-brushed surfaces in a single pass so the edges stay razor sharp.
MB

The House

MB&F

Brand facts

Founding year
2005
Founder
Maximilian Büsser
Headquarters
Switzerland
Tier
Ultra-Luxury & Haute Horlogerie
Major collections
Horological Machine, Legacy Machine, LMX, LM Perpetual, HM11
Signature technologies
Composite and ceramic case materials · Anti-magnetic silicon escapement · Shock-absorbing movement mounting
Famous movements
In-house tourbillon, manual-winding · In-house automatic micro-rotor · In-house manual-winding, hand-finished · In-house automatic with 22k gold rotor
Notable watches
MB&F Horological Machine 42 mm Blue 18k · MB&F Horological Machine 43 mm Ice Quartz · MB&F Horological Machine 40 mm Skeletonised 18k · MB&F Horological Machine 38 mm Salmon Ceramic

Brand history

MB&F has spent more than 21 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's Horological Machine, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.

Maximilian Büsser established MB&F in 2005, working from Switzerland at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every MB&F calibre produced today.

Historical milestones

  1. 2005

    Maximilian Büsser founds MB&F in Switzerland.

  2. 2024

    MB&F continues to produce Horological Machine, Legacy Machine, LMX and other icons in limited numbers.

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