All Hublot
Hublot MP Collection 38 mm Slate 18k
Front view

Front view

Dial, hands and bezel as delivered.

Case-back view

Case-back view

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

Movement

Movement

Calibre with its finishing and decoration.

On the wrist

On the wrist

Worn shot for proportion and strap drape.

Hublot · MP Collection

Hublot MP Collection 38 mm Slate 18k

Reference 29449OR.55

Reference at a glance

Brand
Hublot
Collection
MP Collection
Model
Hublot MP Collection 38 mm Slate 18k
Reference number
29449OR.55
Year / era
1980 · 1980s — quartz-crisis era
Complication
Flyback chronograph
Movement
In-house automatic, chronometer certified
Case material
18k yellow gold
Dial type
Slate grey
Strap / bracelet
Rubber strap with titanium clasp
Water resistance
500 m
Limited-edition status
Regular production, not a limited edition
Compare this reference

Case, dial & bracelet

Case dimensions
38 mm
Case thickness
11.3 mm
Case material
18k yellow gold
Bezel
Fluted 18k gold
Crystal
Box sapphire with AR coating
Dial
Slate grey
Hands
Skeletonised sword hands, white luminescent
Indexes
Applied Roman numerals
Bracelet / strap
Rubber strap with titanium clasp
Clasp / buckle
Titanium deployant clasp
Water resistance
500 m

Movement

Movement / calibre
Calibre 10B — In-house automatic, chronometer certified
Movement type
High-frequency automatic
Frequency
25,200 vph (3.5 Hz)
Power reserve
5 days
Number of jewels
45 jewels
Complications
Flyback chronograph
Functions
Perpetual calendar, leap year
Watchmaker
The calibre is built in-house and adjusted in five positions before delivery.

Production & market

Production period
1980 – 1986
Limited-edition quantity
Not applicable
Current market information
Thin secondary-market supply — pricing is set piece by piece at auction.

Designer

In-house design studio

The reference was drawn by the manufacture's internal design office, where case, dial and movement architects work alongside the watchmakers rather than as an outside commission.

Historical significance

Hublot MP Collection 38 mm Slate 18k sits within Hublot's MP Collection line, introduced in 1980. It carries the house codes established since 1980 — 18k yellow gold case, slate grey dial and in-house automatic, chronometer certified — 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 movement's bridges are decorated even where they will never be seen once the watch is cased.
HU

The House

Hublot

Brand facts

Founding year
1980
Founder
Carlo Crocco
Headquarters
Switzerland
Tier
Luxury
Major collections
Big Bang, Classic Fusion, Spirit of Big Bang, MP Collection, Square Bang
Signature technologies
Anti-magnetic silicon escapement · Hand-applied guilloché dials · Certified chronometer regulation
Famous movements
In-house automatic, Superlative Chronometer · In-house automatic, chronometer certified · In-house automatic chronograph · In-house manual-winding
Notable watches
Hublot Big Bang 36 mm Salmon Stainless (1980) · Hublot Big Bang 43 mm Salmon Stainless (1982) · Hublot Big Bang 43 mm Meteorite Stainless (1996) · Hublot Classic Fusion 44 mm Meteorite 18k (1992)

Brand history

Hublot has spent more than 46 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's Big Bang, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.

Carlo Crocco established Hublot in 1980, working from Switzerland at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every Hublot calibre produced today.

Historical milestones

  1. 1980

    Carlo Crocco founds Hublot in Switzerland.

  2. 1990

    Hublot enters the modern collector market with its signature lines.

  3. 2024

    Hublot continues to produce Big Bang, Classic Fusion, Spirit of Big Bang and other icons in limited numbers.

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