Front view
Dial, hands and bezel as delivered.
Case-back view
Case-back engraving and, where fitted, the sapphire display.
Movement
Calibre with its finishing and decoration.
On the wrist
Worn shot for proportion and strap drape.
A. Lange & Söhne · Richard Lange
A. Lange & Söhne Richard Lange 43 mm Silvered 18k
Reference 55591OR.69
Reference at a glance
- Brand
- A. Lange & Söhne
- Collection
- Richard Lange
- Model
- A. Lange & Söhne Richard Lange 43 mm Silvered 18k
- Reference number
- 55591OR.69
- Year / era
- 1984 · 1980s — quartz-crisis era
- Complication
- Chronograph
- Movement
- In-house automatic with 22k gold rotor
- Case material
- 18k white gold
- Dial type
- Silvered opaline
- Strap / bracelet
- Alligator leather with folding clasp
- Water resistance
- 50 m
- Limited-edition status
- Regular production, not a limited edition
Case, dial & bracelet
- Case dimensions
- 43 mm
- Case thickness
- 8.1 mm
- Case material
- 18k white gold
- Bezel
- Octagonal with 8 hexagonal screws
- Crystal
- Box sapphire with AR coating
- Dial
- Silvered opaline
- Hands
- Mercedes hour hand with Chromalight display
- Indexes
- Applied Arabic numerals with luminous coating
- Bracelet / strap
- Alligator leather with folding clasp
- Clasp / buckle
- Pin buckle in matching case metal
- Water resistance
- 50 m
Movement
- Movement / calibre
- Calibre 10B — In-house automatic with 22k gold rotor
- Movement type
- Automatic, self-winding
- Frequency
- 21,600 vph (3 Hz)
- Power reserve
- 72 hours
- Number of jewels
- 40 jewels
- Complications
- Chronograph
- Functions
- Hours, minutes, seconds, date
- Watchmaker
- Assembled and regulated by a single watchmaker, who signs off the piece before casing.
Production & market
- Production period
- 1984 – 1994
- Limited-edition quantity
- Not applicable
- Current market information
- Thin secondary-market supply — pricing is set piece by piece at auction.
Designer
Gérald Genta
Gérald Genta (1931–2011) trained as a goldsmith in Geneva and became the most influential watch designer of the 20th century. Working freelance, he sketched the Audemars Piguet Royal Oak overnight in 1970, followed by the Patek Philippe Nautilus, the IWC Ingenieur SL and the Bulgari Bulgari — defining the integrated-bracelet luxury sports watch as a category.
Historical significance
A. Lange & Söhne Richard Lange 43 mm Silvered 18k sits within A. Lange & Söhne's Richard Lange line, introduced in 1984. It carries the house codes established since 1845 — 18k white gold case, silvered opaline dial and in-house automatic with 22k gold rotor — and is one of the references collectors use to date the evolution of the collection.
Interesting facts
- The bracelet tapers across its length, which is why the profile looks thinner on the wrist than the specification suggests.
- The case is finished by hand, alternating polished and satin-brushed surfaces in a single pass so the edges stay razor sharp.
- The reference was originally planned as a one-year run and stayed in the catalogue for well over a decade.
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
1845
Ferdinand Adolph Lange founds A. Lange & Söhne in Germany.
1885
A. Lange & Söhne earns its first international recognition for precision timekeeping.
1969
The quartz era forces A. Lange & Söhne to redefine mechanical watchmaking.
1990
A. Lange & Söhne enters the modern collector market with its signature lines.
2024
A. Lange & Söhne continues to produce Lange 1, Saxonia, Odysseus and other icons in limited numbers.
More Richard Lange
A. Lange & Söhne Richard Lange 39 mm Black 18k
Ref. 34555OR.59
A. Lange & Söhne Richard Lange 38 mm Skeletonised Sapphire
Ref. 57873OR.77
A. Lange & Söhne Richard Lange 36 mm Silvered Platinum
Ref. 38647OR.45
A. Lange & Söhne Richard Lange 37 mm Blue 18k
Ref. 57648OR.18
A. Lange & Söhne Richard Lange 38 mm Skeletonised Ceramic
Ref. 62963OR.80