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.
Bell & Ross · BR-X1
Bell & Ross BR-X1 37 mm Black Platinum
Reference 99570OR.73
Reference at a glance
- Brand
- Bell & Ross
- Collection
- BR-X1
- Model
- Bell & Ross BR-X1 37 mm Black Platinum
- Reference number
- 99570OR.73
- Year / era
- 1994 · 1990s — mechanical revival
- Complication
- Annual calendar
- Movement
- Automatic, Swiss lever escapement
- Case material
- Platinum 950
- Dial type
- Black lacquer
- Strap / bracelet
- Integrated steel bracelet
- Water resistance
- 200 m
- Limited-edition status
- Regular production, not a limited edition
Case, dial & bracelet
- Case dimensions
- 37 mm
- Case thickness
- 10.2 mm
- Case material
- Platinum 950
- Bezel
- Fluted 18k gold
- Crystal
- Sapphire with internal AR treatment
- Dial
- Black lacquer
- Hands
- Rhodium-plated baton hands with luminous fill
- Indexes
- Applied faceted white-gold indexes
- Bracelet / strap
- Integrated steel bracelet
- Clasp / buckle
- Triple-folding clasp with safety catch
- Water resistance
- 200 m
Movement
- Movement / calibre
- Calibre 24E — Automatic, Swiss lever escapement
- Movement type
- High-frequency automatic
- Frequency
- 25,200 vph (3.5 Hz)
- Power reserve
- 70 hours
- Number of jewels
- 25 jewels
- Complications
- Annual calendar
- Functions
- Flying tourbillon, power reserve
- Watchmaker
- Assembled and regulated by a single watchmaker, who signs off the piece before casing.
Production & market
- Production period
- 1994 – 2005
- Limited-edition quantity
- Not applicable
- 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
Bell & Ross BR-X1 37 mm Black Platinum sits within Bell & Ross's BR-X1 line, introduced in 1994. It carries the house codes established since 1992 — platinum 950 case, black lacquer dial and automatic, swiss lever escapement — 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.
- Early production dials show a slightly different minute track, and collectors pay a premium for them.
The House
Bell & Ross
Brand facts
- Founding year
- 1992
- Founder
- Bruno Belamich & Carlos A. Rosillo
- Headquarters
- France
- Tier
- Premium
- Major collections
- BR 03, BR 05, BR V2, BR-X1, Vintage
- Signature technologies
- Certified chronometer regulation · Proprietary case-hardening and polishing
- Famous movements
- Automatic chronograph · High-beat automatic · Spring Drive · Automatic, Swiss lever escapement
- Notable watches
- Bell & Ross BR 03 40 mm Salmon Grade (2004) · Bell & Ross BR 03 37 mm Skeletonised Sapphire (1992) · Bell & Ross BR 03 38 mm Black Ceramic (1992) · Bell & Ross BR 03 42 mm Ice Grade (1992)
Brand history
Bell & Ross has spent more than 34 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's BR 03, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.
Bruno Belamich & Carlos A. Rosillo established Bell & Ross in 1992, working from France at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every Bell & Ross calibre produced today.
Historical milestones
1992
Bruno Belamich & Carlos A. Rosillo founds Bell & Ross in France.
2024
Bell & Ross continues to produce BR 03, BR 05, BR V2 and other icons in limited numbers.