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.
Hamilton · Jazzmaster
Hamilton Jazzmaster 38 mm Skeletonised Sapphire
Reference 86113OR.42
Reference at a glance
- Brand
- Hamilton
- Collection
- Jazzmaster
- Model
- Hamilton Jazzmaster 38 mm Skeletonised Sapphire
- Reference number
- 86113OR.42
- Year / era
- 2006 · 2000s — modern production
- Complication
- Tourbillon
- Movement
- Automatic COSC chronometer
- Case material
- Sapphire crystal case
- Dial type
- Skeletonised
- Strap / bracelet
- Alligator leather with folding clasp
- Water resistance
- 150 m
- Limited-edition status
- Regular production, not a limited edition
Case, dial & bracelet
- Case dimensions
- 38 mm
- Case thickness
- 12.6 mm
- Case material
- Sapphire crystal case
- Bezel
- Bidirectional 24-hour Cerachrom
- Crystal
- Flat sapphire with Cyclops lens
- Dial
- Skeletonised
- Hands
- Mercedes hour hand with Chromalight display
- Indexes
- Printed minute track with applied batons
- Bracelet / strap
- Alligator leather with folding clasp
- Clasp / buckle
- Titanium deployant clasp
- Water resistance
- 150 m
Movement
- Movement / calibre
- Calibre 86F — Automatic COSC chronometer
- Movement type
- High-frequency automatic
- Frequency
- 28,800 vph (4 Hz)
- Power reserve
- 38 hours
- Number of jewels
- 27 jewels
- Complications
- Tourbillon
- Functions
- GMT second time zone, date
- Watchmaker
- Finishing, assembly and timing are carried out in the manufacture's own atelier.
Production & market
- Production period
- 2006 – 2020
- Limited-edition quantity
- Not applicable
- Current market information
- Consistently trades above retail; waiting lists at authorised dealers remain long.
Designer
In-house design studio
The reference was drawn by the manufacture's internal design office, where case, dial and movement architects work alongside the watchmakers rather than as an outside commission.
Historical significance
Hamilton Jazzmaster 38 mm Skeletonised Sapphire sits within Hamilton's Jazzmaster line, introduced in 2006. It carries the house codes established since 1892 — sapphire crystal case 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 bracelet tapers across its length, which is why the profile looks thinner on the wrist than the specification suggests.
- The reference was originally planned as a one-year run and stayed in the catalogue for well over a decade.
The House
Hamilton
Brand facts
- Founding year
- 1892
- Founder
- Adam Bopst & Charles Rood
- Headquarters
- United States
- Tier
- Affordable & Tool Watches
- Major collections
- Khaki Field, Khaki Navy, Jazzmaster, Ventura, American Classic
- Signature technologies
- In-house hairspring production · Composite and ceramic case materials · Anti-magnetic silicon escapement
- Famous movements
- Automatic COSC chronometer · Quartz · Automatic Powermatic 80 · Automatic, 38-hour reserve
- Notable watches
- Hamilton Khaki Field 37 mm Blue Carbon (1976) · Hamilton Khaki Field 44 mm Salmon Grade (1952) · Hamilton Khaki Field 37 mm Mother-of-pearl Sapphire (1982) · Hamilton Khaki Field 37 mm Meteorite Stainless (1985)
Brand history
Hamilton has spent more than 134 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's Khaki Field, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.
Adam Bopst & Charles Rood established Hamilton in 1892, working from United States at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every Hamilton calibre produced today.
Historical milestones
1892
Adam Bopst & Charles Rood founds Hamilton in United States.
1899
Hamilton earns its first international recognition for precision timekeeping.
1969
The quartz era forces Hamilton to redefine mechanical watchmaking.
1990
Hamilton enters the modern collector market with its signature lines.
2024
Hamilton continues to produce Khaki Field, Khaki Navy, Jazzmaster and other icons in limited numbers.