Victorinox
Victorinox I.N.O.X. 38 mm Skeletonised Grade
Photography on request
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.
Victorinox · I.N.O.X.
Victorinox I.N.O.X. 38 mm Skeletonised Grade
Reference 27399OR.17
Reference at a glance
- Brand
- Victorinox
- Collection
- I.N.O.X.
- Model
- Victorinox I.N.O.X. 38 mm Skeletonised Grade
- Reference number
- 27399OR.17
- Year / era
- 1976 · 1970s — quartz-crisis era
- Complication
- Time and date
- Movement
- Automatic COSC chronometer
- Case material
- Grade 5 titanium
- Dial type
- Skeletonised
- Strap / bracelet
- Integrated steel bracelet
- Water resistance
- 300 m
- Limited-edition status
- Limited edition of 88 pieces
Case, dial & bracelet
- Case dimensions
- 38 mm
- Case thickness
- 12.6 mm
- Case material
- Grade 5 titanium
- Bezel
- Smooth polished
- Crystal
- Box sapphire with AR coating
- Dial
- Skeletonised
- Hands
- Rhodium-plated baton hands with luminous fill
- Indexes
- Applied Roman numerals
- Bracelet / strap
- Integrated steel bracelet
- Clasp / buckle
- Pin buckle in matching case metal
- Water resistance
- 300 m
Movement
- Movement / calibre
- Calibre 17C — Automatic COSC chronometer
- Movement type
- Automatic, self-winding
- Frequency
- 36,000 vph (5 Hz)
- Power reserve
- 72 hours
- Number of jewels
- 25 jewels
- Complications
- Time and date
- Functions
- Flying tourbillon, power reserve
- Watchmaker
- Assembled and regulated by a single watchmaker, who signs off the piece before casing.
Production & market
- Production period
- 1976 – 1983
- Limited-edition quantity
- 88 pieces
- Current market information
- Trades close to retail on the secondary market, with steady demand for full-set examples.
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
Victorinox I.N.O.X. 38 mm Skeletonised Grade sits within Victorinox's I.N.O.X. line, introduced in 1976. It carries the house codes established since 1884 — grade 5 titanium case, skeletonised dial and automatic cosc chronometer — 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 case is finished by hand, alternating polished and satin-brushed surfaces in a single pass so the edges stay razor sharp.
The House
Victorinox
Brand facts
- Founding year
- 1884
- Founder
- Karl Elsener
- Headquarters
- Switzerland
- Tier
- Affordable & Tool Watches
- Major collections
- I.N.O.X., Maverick, Fieldforce, Airboss, Journey
- Signature technologies
- Shock-absorbing movement mounting · Anti-magnetic silicon escapement · Proprietary case-hardening and polishing
- Famous movements
- Automatic Powermatic 80 · Automatic COSC chronometer · Quartz · Automatic, 38-hour reserve
- Notable watches
- Victorinox I.N.O.X. 38 mm Blue 18k (1956) · Victorinox I.N.O.X. 36 mm Green Carbon (1973) · Victorinox I.N.O.X. 38 mm Skeletonised Grade (1976) · Victorinox I.N.O.X. 38 mm Slate Quartz (1994)
Brand history
Victorinox has spent more than 142 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's I.N.O.X., the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.
Karl Elsener established Victorinox in 1884, working from Switzerland at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every Victorinox calibre produced today.
Historical milestones
1884
Karl Elsener founds Victorinox in Switzerland.
1899
Victorinox earns its first international recognition for precision timekeeping.
1969
The quartz era forces Victorinox to redefine mechanical watchmaking.
1990
Victorinox enters the modern collector market with its signature lines.
2024
Victorinox continues to produce I.N.O.X., Maverick, Fieldforce and other icons in limited numbers.