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Audemars Piguet Royal Oak 26470ST.OO.A027CA.01 Stainless Steel 42Mm Blue Dial

Audemars Piguet

Audemars Piguet Royal Oak 26470ST.OO.A027CA.01 Stainless Steel 42Mm Blue Dial

Audemars Piguet Royal Oak 26470ST.OO.A027CA.01 Stainless Steel 42mm Blue Dial Men's Watch

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Reference at a glance

Brand
Audemars Piguet
Collection
Royal Oak
Model
Audemars Piguet Royal Oak 26470ST.OO.A027CA.01 Stainless Steel 42Mm Blue Dial
Reference number
027CA-01
Year / era
2002 · 2000s — modern production
Complication
GMT / second time zone
Movement
Automatic chronograph calibre
Case material
White gold
Dial type
Blue sunburst dial
Strap / bracelet
Rubber strap
Water resistance
Water resistant to 100 m
Limited-edition status
Regular production, not a limited edition

Case, dial & bracelet

Case dimensions
42 mm diameter
Case thickness
11.3 mm
Case material
White gold
Bezel
Ceramic insert bezel
Crystal
Sapphire crystal with anti-reflective coating
Dial
Blue sunburst dial
Hands
Rhodium-plated baton hands with luminous fill
Indexes
Applied faceted white-gold indexes
Bracelet / strap
Rubber strap
Clasp / buckle
Titanium deployant clasp
Water resistance
Water resistant to 100 m

Movement

Movement / calibre
Calibre 10B — Automatic chronograph calibre
Movement type
High-frequency automatic
Frequency
25,200 vph (3.5 Hz)
Power reserve
55 hours
Number of jewels
37 jewels
Complications
GMT / second time zone
Functions
Chronograph, hours, minutes, date
Watchmaker
Finishing, assembly and timing are carried out in the manufacture's own atelier.

Production & market

Production period
2002 – 2008
Limited-edition quantity
Not applicable
Current market information
Values have stabilised after the 2022 correction; condition and box-and-papers drive the premium.

Designer

Jörg Hysek

Jörg Hysek left Rolex and Seiko's European studios to build a design practice in Geneva, giving houses such as Vacheron Constantin, Breguet, Seiko and TAG Heuer their sculptural, architecture-led cases before founding his own brand, HD3.

Historical significance

Audemars Piguet Royal Oak 26470ST.OO.A027CA.01 Stainless Steel 42Mm Blue Dial sits within Audemars Piguet's Royal Oak line, introduced in 2002. It carries the house codes established since 1875 — white gold case, blue sunburst dial dial and automatic chronograph calibre — 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.
AU

The House

Audemars Piguet

Brand facts

Founding year
1875
Founder
Jules Louis Audemars & Edward Auguste Piguet
Headquarters
Switzerland
Major collections
Royal Oak, Royal Oak Offshore, Royal Oak Concept, Code 11.59, Millenary, Jules Audemars
Signature technologies
Shock-absorbing movement mounting; Composite and ceramic case materials; Certified chronometer regulation
Famous movements
In-house tourbillon, manual-winding, In-house automatic with 22k gold rotor, In-house manual-winding, hand-finished, In-house automatic micro-rotor
Notable watches
Audemars Piguet Royal Oak 44 mm Ice Ceramic (1993), Audemars Piguet Royal Oak 37 mm Salmon Ceramic (1959), Audemars Piguet Royal Oak 39 mm Slate Ceramic (1972), Audemars Piguet Royal Oak 40 mm Black Ceramic (1980)

Brand history

Audemars Piguet has spent more than 151 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's Royal Oak, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.

Jules Louis Audemars & Edward Auguste Piguet established Audemars Piguet in 1875, working from Switzerland at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every Audemars Piguet calibre produced today.

Historical milestones

  1. 1875

    Jules Louis Audemars & Edward Auguste Piguet founds Audemars Piguet in Switzerland.

  2. 1899

    Audemars Piguet earns its first international recognition for precision timekeeping.

  3. 1969

    The quartz era forces Audemars Piguet to redefine mechanical watchmaking.

  4. 1990

    Audemars Piguet enters the modern collector market with its signature lines.

  5. 2024

    Audemars Piguet continues to produce Royal Oak, Royal Oak Offshore, Royal Oak Concept and other icons in limited numbers.

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