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.
Roger Dubuis · Knights of the Round Table
Roger Dubuis Knights of the Round Table 41 mm Green Quartz
Reference 64417OR.81
Reference at a glance
- Brand
- Roger Dubuis
- Collection
- Knights of the Round Table
- Model
- Roger Dubuis Knights of the Round Table 41 mm Green Quartz
- Reference number
- 64417OR.81
- Year / era
- 1995 · 1990s — mechanical revival
- Complication
- Perpetual calendar
- Movement
- In-house manual-winding, hand-finished
- Case material
- Quartz TPT
- Dial type
- Green sunburst
- Strap / bracelet
- Milanese mesh
- Water resistance
- 500 m
- Limited-edition status
- Regular production, not a limited edition
Case, dial & bracelet
- Case dimensions
- 41 mm
- Case thickness
- 11.3 mm
- Case material
- Quartz TPT
- Bezel
- Smooth polished
- Crystal
- Anti-reflective sapphire, double-domed
- Dial
- Green sunburst
- Hands
- Rhodium-plated baton hands with luminous fill
- Indexes
- Applied faceted white-gold indexes
- Bracelet / strap
- Milanese mesh
- Clasp / buckle
- Pin buckle in matching case metal
- Water resistance
- 500 m
Movement
- Movement / calibre
- Calibre 75D — In-house manual-winding, hand-finished
- Movement type
- Automatic with micro-rotor
- Frequency
- 25,200 vph (3.5 Hz)
- Power reserve
- 70 hours
- Number of jewels
- 37 jewels
- Complications
- Perpetual calendar
- Functions
- Annual calendar, moon phase
- Watchmaker
- Assembled and regulated by a single watchmaker, who signs off the piece before casing.
Production & market
- Production period
- 1995 – 2011
- 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
Roger Dubuis Knights of the Round Table 41 mm Green Quartz sits within Roger Dubuis's Knights of the Round Table line, introduced in 1995. It carries the house codes established since 1995 — quartz tpt case, green sunburst dial and in-house manual-winding, hand-finished — and is one of the references collectors use to date the evolution of the collection.
Interesting facts
- 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 reference was originally planned as a one-year run and stayed in the catalogue for well over a decade.
The House
Roger Dubuis
Brand facts
- Founding year
- 1995
- Founder
- Roger Dubuis & Carlos Dias
- Headquarters
- Switzerland
- Tier
- Ultra-Luxury & Haute Horlogerie
- Major collections
- Excalibur, Excalibur Spider, Velvet, Monovortex, Knights of the Round Table
- Signature technologies
- Hand-applied guilloché dials · In-house hairspring production · Composite and ceramic case materials
- Famous movements
- In-house tourbillon, manual-winding · In-house automatic micro-rotor · In-house automatic with 22k gold rotor · In-house manual-winding, hand-finished
- Notable watches
- Roger Dubuis Excalibur 40 mm Black 18k (1995) · Roger Dubuis Excalibur 43 mm Silvered Sapphire (1995) · Roger Dubuis Excalibur 39 mm Silvered Sapphire (1995) · Roger Dubuis Excalibur 38 mm Blue 18k (1995)
Brand history
Roger Dubuis has spent more than 31 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's Excalibur, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.
Roger Dubuis & Carlos Dias established Roger Dubuis in 1995, working from Switzerland at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every Roger Dubuis calibre produced today.
Historical milestones
1995
Roger Dubuis & Carlos Dias founds Roger Dubuis in Switzerland.
2024
Roger Dubuis continues to produce Excalibur, Excalibur Spider, Velvet and other icons in limited numbers.
More Knights of the Round Table
Roger Dubuis Knights of the Round Table 38 mm Silvered Sapphire
Ref. 95912OR.69
Roger Dubuis Knights of the Round Table 36 mm Green Ceramic
Ref. 64882OR.20
Roger Dubuis Knights of the Round Table 41 mm Meteorite Platinum
Ref. 32233OR.49
Roger Dubuis Knights of the Round Table 43 mm Meteorite 18k
Ref. 89134OR.50
Roger Dubuis Knights of the Round Table 43 mm Salmon Ceramic
Ref. 51278OR.69