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.
Montblanc · Iced Sea
Montblanc Iced Sea 42 mm Green Grade
Reference 83288OR.90
Reference at a glance
- Brand
- Montblanc
- Collection
- Iced Sea
- Model
- Montblanc Iced Sea 42 mm Green Grade
- Reference number
- 83288OR.90
- Year / era
- 1989 · 1980s — mechanical revival
- Complication
- Time and date
- Movement
- Automatic chronograph
- Case material
- Grade 5 titanium
- Dial type
- Green sunburst
- Strap / bracelet
- NATO textile strap
- Water resistance
- 300 m
- Limited-edition status
- Regular production, not a limited edition
Case, dial & bracelet
- Case dimensions
- 42 mm
- Case thickness
- 8.8 mm
- Case material
- Grade 5 titanium
- Bezel
- Baguette diamond rainbow
- Crystal
- Box sapphire with AR coating
- Dial
- Green sunburst
- Hands
- Faceted dauphine hands, polished by hand
- Indexes
- Applied faceted white-gold indexes
- Bracelet / strap
- NATO textile strap
- Clasp / buckle
- Titanium deployant clasp
- Water resistance
- 300 m
Movement
- Movement / calibre
- Calibre 3D — Automatic chronograph
- Movement type
- High-frequency automatic
- Frequency
- 28,800 vph (4 Hz)
- Power reserve
- 55 hours
- Number of jewels
- 40 jewels
- Complications
- Time and date
- Functions
- Hours, minutes, small seconds
- Watchmaker
- The calibre is built in-house and adjusted in five positions before delivery.
Production & market
- Production period
- 1989 – 2003
- Limited-edition quantity
- Not applicable
- Current market information
- Thin secondary-market supply — pricing is set piece by piece at auction.
Designer
Marc Newson
Marc Newson is an Australian industrial designer whose work spans Qantas cabins, Apple hardware and Jaeger-LeCoultre's Atmos clocks; his watch design reduces the object to pure geometry and legibility.
Historical significance
Montblanc Iced Sea 42 mm Green Grade sits within Montblanc's Iced Sea line, introduced in 1989. It carries the house codes established since 1906 — grade 5 titanium case, green sunburst dial and 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.
- Early production dials show a slightly different minute track, and collectors pay a premium for them.
- The case is finished by hand, alternating polished and satin-brushed surfaces in a single pass so the edges stay razor sharp.
The House
Montblanc
Brand facts
- Founding year
- 1906
- Founder
- August Eberstein, Alfred Nehemias & Claus-Johannes Voss
- Headquarters
- Germany
- Tier
- Premium
- Major collections
- 1858, Heritage, Star Legacy, Iced Sea, TimeWalker
- Signature technologies
- Anti-magnetic silicon escapement · Hand-applied guilloché dials · Shock-absorbing movement mounting
- Famous movements
- High-beat automatic · Spring Drive · Automatic, Swiss lever escapement · Automatic chronograph
- Notable watches
- Montblanc 1858 42 mm Slate Quartz (1969) · Montblanc 1858 36 mm Blue Stainless (1998) · Montblanc 1858 42 mm Mother-of-pearl Carbon (1995) · Montblanc Heritage 43 mm Slate Carbon (1990)
Brand history
Montblanc has spent more than 120 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's 1858, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.
August Eberstein, Alfred Nehemias & Claus-Johannes Voss established Montblanc in 1906, working from Germany at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every Montblanc calibre produced today.
Historical milestones
1906
August Eberstein, Alfred Nehemias & Claus-Johannes Voss founds Montblanc in Germany.
1969
The quartz era forces Montblanc to redefine mechanical watchmaking.
1990
Montblanc enters the modern collector market with its signature lines.
2024
Montblanc continues to produce 1858, Heritage, Star Legacy and other icons in limited numbers.