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 · Zeitwerk
A. Lange & Söhne Zeitwerk 43 mm Black Ceramic
Reference 99059OR.86
Reference at a glance
- Brand
- A. Lange & Söhne
- Collection
- Zeitwerk
- Model
- A. Lange & Söhne Zeitwerk 43 mm Black Ceramic
- Reference number
- 99059OR.86
- Year / era
- 1987 · 1980s — mechanical revival
- Complication
- Moon phase
- Movement
- In-house tourbillon, manual-winding
- Case material
- Ceramic
- Dial type
- Black lacquer
- Strap / bracelet
- White rubber velcro strap
- Water resistance
- 30 m
- Limited-edition status
- Regular production, not a limited edition
Case, dial & bracelet
- Case dimensions
- 43 mm
- Case thickness
- 12.6 mm
- Case material
- Ceramic
- Bezel
- Unidirectional ceramic 60-minute
- Crystal
- Sapphire with internal AR treatment
- Dial
- Black lacquer
- Hands
- Faceted dauphine hands, polished by hand
- Indexes
- Applied faceted white-gold indexes
- Bracelet / strap
- White rubber velcro strap
- Clasp / buckle
- Triple-folding clasp with safety catch
- Water resistance
- 30 m
Movement
- Movement / calibre
- Calibre 64D — In-house tourbillon, manual-winding
- Movement type
- Manual-winding
- Frequency
- 36,000 vph (5 Hz)
- Power reserve
- 38 hours
- Number of jewels
- 31 jewels
- Complications
- Moon phase
- Functions
- Dive time, running seconds
- Watchmaker
- Assembled and regulated by a single watchmaker, who signs off the piece before casing.
Production & market
- Production period
- 1987 – 2003
- Limited-edition quantity
- Not applicable
- Current market information
- Consistently trades above retail; waiting lists at authorised dealers remain long.
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 Zeitwerk 43 mm Black Ceramic sits within A. Lange & Söhne's Zeitwerk line, introduced in 1987. It carries the house codes established since 1845 — ceramic case, black lacquer dial and in-house tourbillon, manual-winding — and is one of the references collectors use to date the evolution of the collection.
Interesting facts
- The case is finished by hand, alternating polished and satin-brushed surfaces in a single pass so the edges stay razor sharp.
- The movement's bridges are decorated even where they will never be seen once the watch is cased.
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 Zeitwerk
A. Lange & Söhne Zeitwerk 40 mm Meteorite Quartz
Ref. 65470OR.56
A. Lange & Söhne Zeitwerk 42 mm Blue Carbon
Ref. 30433OR.72
A. Lange & Söhne Zeitwerk 37 mm Mother-of-pearl Stainless
Ref. 50369ST.58
A. Lange & Söhne Zeitwerk 40 mm Slate Grade
Ref. 27753OR.84
A. Lange & Söhne Zeitwerk 39 mm Blue Sapphire
Ref. 26587OR.11