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.
Rolex · Sky-Dweller
Rolex Sky-Dweller 39 mm Ice 18k
Reference 23210OR.70
Reference at a glance
- Brand
- Rolex
- Collection
- Sky-Dweller
- Model
- Rolex Sky-Dweller 39 mm Ice 18k
- Reference number
- 23210OR.70
- Year / era
- 1981 · 1980s — quartz-crisis era
- Complication
- GMT / second time zone
- Movement
- In-house automatic chronograph
- Case material
- 18k white gold
- Dial type
- Ice blue
- Strap / bracelet
- NATO textile strap
- Water resistance
- 50 m
- Limited-edition status
- Regular production, not a limited edition
Case, dial & bracelet
- Case dimensions
- 39 mm
- Case thickness
- 14.1 mm
- Case material
- 18k white gold
- Bezel
- Fluted 18k gold
- Crystal
- Flat sapphire with Cyclops lens
- Dial
- Ice blue
- Hands
- Rhodium-plated baton hands with luminous fill
- Indexes
- Applied faceted white-gold indexes
- Bracelet / strap
- NATO textile strap
- Clasp / buckle
- Triple-folding clasp with safety catch
- Water resistance
- 50 m
Movement
- Movement / calibre
- Calibre 89D — In-house automatic chronograph
- Movement type
- High-frequency automatic
- Frequency
- 28,800 vph (4 Hz)
- Power reserve
- 55 hours
- Number of jewels
- 33 jewels
- Complications
- GMT / second time zone
- Functions
- Annual calendar, moon phase
- Watchmaker
- Assembled and regulated by a single watchmaker, who signs off the piece before casing.
Production & market
- Production period
- 1981 – 1991
- 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
Rolex Sky-Dweller 39 mm Ice 18k sits within Rolex's Sky-Dweller line, introduced in 1981. It carries the house codes established since 1905 — 18k white gold case, ice blue dial and in-house automatic chronograph — and is one of the references collectors use to date the evolution of the collection.
Interesting facts
- The reference was originally planned as a one-year run and stayed in the catalogue for well over a decade.
- The movement's bridges are decorated even where they will never be seen once the watch is cased.
The House
Rolex
Brand facts
- Founding year
- 1905
- Founder
- Hans Wilsdorf
- Headquarters
- Switzerland
- Tier
- Luxury
- Major collections
- Submariner, Daytona, GMT-Master II, Datejust, Day-Date, Yacht-Master, Sky-Dweller, Explorer, Oyster Perpetual, Sea-Dweller, Air-King, 1908, Milgauss
- Signature technologies
- Proprietary case-hardening and polishing · Composite and ceramic case materials
- Famous movements
- In-house automatic, chronometer certified · In-house automatic chronograph · In-house automatic, Superlative Chronometer · In-house manual-winding
- Notable watches
- Rolex Submariner 44 mm Skeletonised Platinum (1978) · Rolex Submariner 36 mm Ice 18k (1981) · Rolex Submariner 42 mm Meteorite Quartz (1982) · Rolex Submariner 38 mm Silvered 18k (1989)
Brand history
Rolex has spent more than 121 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's Submariner, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.
Hans Wilsdorf established Rolex in 1905, working from Switzerland at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every Rolex calibre produced today.
Historical milestones
1905
Hans Wilsdorf founds Rolex in Switzerland.
1969
The quartz era forces Rolex to redefine mechanical watchmaking.
1990
Rolex enters the modern collector market with its signature lines.
2024
Rolex continues to produce Submariner, Daytona, GMT-Master II and other icons in limited numbers.