Doxa
Doxa SUB 300 41 mm Green Sapphire
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.
Doxa · SUB 300
Doxa SUB 300 41 mm Green Sapphire
Reference 51000OR.97
Reference at a glance
- Brand
- Doxa
- Collection
- SUB 300
- Model
- Doxa SUB 300 41 mm Green Sapphire
- Reference number
- 51000OR.97
- Year / era
- 1966 · 1960s — pre-quartz mechanical era
- Complication
- Flyback chronograph
- Movement
- Automatic COSC chronometer
- Case material
- Sapphire crystal case
- Dial type
- Green sunburst
- Strap / bracelet
- Jubilee bracelet
- Water resistance
- 300 m
- Limited-edition status
- Regular production, not a limited edition
Case, dial & bracelet
- Case dimensions
- 41 mm
- Case thickness
- 14.1 mm
- Case material
- Sapphire crystal case
- Bezel
- Fluted 18k gold
- Crystal
- Anti-reflective sapphire, double-domed
- Dial
- Green sunburst
- Hands
- Skeletonised sword hands, white luminescent
- Indexes
- Diamond-set hour markers
- Bracelet / strap
- Jubilee bracelet
- Clasp / buckle
- Pin buckle in matching case metal
- Water resistance
- 300 m
Movement
- Movement / calibre
- Calibre 21D — Automatic COSC chronometer
- Movement type
- Automatic with micro-rotor
- Frequency
- 25,200 vph (3.5 Hz)
- Power reserve
- 5 days
- Number of jewels
- 37 jewels
- Complications
- Flyback chronograph
- Functions
- GMT second time zone, date
- Watchmaker
- Assembled and regulated by a single watchmaker, who signs off the piece before casing.
Production & market
- Production period
- 1966 – 1970
- Limited-edition quantity
- Not applicable
- Current market information
- Values have stabilised after the 2022 correction; condition and box-and-papers drive the premium.
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
Doxa SUB 300 41 mm Green Sapphire sits within Doxa's SUB 300 line, introduced in 1966. It carries the house codes established since 1889 — sapphire crystal case case, green sunburst 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 bracelet tapers across its length, which is why the profile looks thinner on the wrist than the specification suggests.
The House
Doxa
Brand facts
- Founding year
- 1889
- Founder
- Georges Ducommun
- Headquarters
- Switzerland
- Tier
- Affordable & Tool Watches
- Major collections
- SUB 300, SUB 200, SUB 800, Army
- Signature technologies
- Anti-magnetic silicon escapement · Proprietary case-hardening and polishing · Certified chronometer regulation
- Famous movements
- Quartz · Automatic COSC chronometer · Automatic, 38-hour reserve · Automatic Powermatic 80
- Notable watches
- Doxa SUB 300 42 mm Blue Quartz (1987) · Doxa SUB 300 42 mm Meteorite 18k (1989) · Doxa SUB 300 42 mm Salmon Stainless (1986) · Doxa SUB 300 41 mm Green Sapphire (1966)
Brand history
Doxa has spent more than 137 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's SUB 300, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.
Georges Ducommun established Doxa in 1889, working from Switzerland at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every Doxa calibre produced today.
Historical milestones
1889
Georges Ducommun founds Doxa in Switzerland.
1899
Doxa earns its first international recognition for precision timekeeping.
1969
The quartz era forces Doxa to redefine mechanical watchmaking.
1990
Doxa enters the modern collector market with its signature lines.
2024
Doxa continues to produce SUB 300, SUB 200, SUB 800 and other icons in limited numbers.