All A. Lange & Söhne
A. Lange & Söhne 1815 39 mm Skeletonised Platinum
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.

A. Lange & Söhne · 1815

A. Lange & Söhne 1815 39 mm Skeletonised Platinum

Reference 93277OR.39

Reference at a glance

Brand
A. Lange & Söhne
Collection
1815
Model
A. Lange & Söhne 1815 39 mm Skeletonised Platinum
Reference number
93277OR.39
Year / era
2017 · 2010s — modern production
Complication
Time and date
Movement
In-house manual-winding, hand-finished
Case material
Platinum 950
Dial type
Skeletonised
Strap / bracelet
Milanese mesh
Water resistance
300 m
Limited-edition status
Regular production, not a limited edition
Compare this reference

Case, dial & bracelet

Case dimensions
39 mm
Case thickness
9.4 mm
Case material
Platinum 950
Bezel
Emerald-set
Crystal
Anti-reflective sapphire, double-domed
Dial
Skeletonised
Hands
Blued steel Breguet-style hands
Indexes
Diamond-set hour markers
Bracelet / strap
Milanese mesh
Clasp / buckle
Triple-folding clasp with safety catch
Water resistance
300 m

Movement

Movement / calibre
Calibre 75A — In-house manual-winding, hand-finished
Movement type
High-frequency automatic
Frequency
28,800 vph (4 Hz)
Power reserve
10 days
Number of jewels
21 jewels
Complications
Time and date
Functions
Dive time, running seconds
Watchmaker
Finishing, assembly and timing are carried out in the manufacture's own atelier.

Production & market

Production period
2017 – 2026
Limited-edition quantity
Not applicable
Current market information
Trades close to retail on the secondary market, with steady demand for full-set examples.

Designer

Emmanuel Gueit

Emmanuel Gueit came from a family of Geneva jewellers and was barely into his twenties when he drew the oversized Royal Oak Offshore in 1993 — a watch the house's traditionalists resisted and collectors turned into an icon.

Historical significance

A. Lange & Söhne 1815 39 mm Skeletonised Platinum sits within A. Lange & Söhne's 1815 line, introduced in 2017. It carries the house codes established since 1845 — platinum 950 case, skeletonised dial and in-house manual-winding, hand-finished — and is one of the references collectors use to date the evolution of the collection.

Interesting facts

  • The movement's bridges are decorated even where they will never be seen once the watch is cased.
  • The case is finished by hand, alternating polished and satin-brushed surfaces in a single pass so the edges stay razor sharp.
A.

The House

A. Lange & Söhne

Brand facts

Founding year
1845
Founder
Ferdinand Adolph Lange
Headquarters
Germany
Tier
Ultra-Luxury & Haute Horlogerie
Major collections
Lange 1, Saxonia, Odysseus, Datograph, Zeitwerk, 1815, Richard Lange
Signature technologies
Composite and ceramic case materials · In-house hairspring production
Famous movements
In-house tourbillon, manual-winding · In-house manual-winding, hand-finished · In-house automatic with 22k gold rotor · In-house automatic micro-rotor
Notable watches
A. Lange & Söhne Lange 1 40 mm Slate Platinum (1978) · A. Lange & Söhne Lange 1 39 mm Green Stainless (1969) · A. Lange & Söhne Lange 1 44 mm Blue Quartz (1954) · A. Lange & Söhne Lange 1 41 mm Silvered Quartz (1973)

Brand history

A. Lange & Söhne has spent more than 181 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's Lange 1, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.

Ferdinand Adolph Lange established A. Lange & Söhne in 1845, working from Germany at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every A. Lange & Söhne calibre produced today.

Historical milestones

  1. 1845

    Ferdinand Adolph Lange founds A. Lange & Söhne in Germany.

  2. 1885

    A. Lange & Söhne earns its first international recognition for precision timekeeping.

  3. 1969

    The quartz era forces A. Lange & Söhne to redefine mechanical watchmaking.

  4. 1990

    A. Lange & Söhne enters the modern collector market with its signature lines.

  5. 2024

    A. Lange & Söhne continues to produce Lange 1, Saxonia, Odysseus and other icons in limited numbers.

More 1815