Every reference with a known width takes the same strap size. Your reference is engraved on the case back or between the lugs at 6 o'clock.
24 mm
Verification: From our database, not yet verified
46 mm case · 2009 to 2018
Indicative information. Check your watch before buying a strap: whatsmylugwidth.com is not responsible for an incorrect size.
The Bell & Ross BR-01 takes a 24 mm strap: all 5 references with a known width use 24 mm.
The story · Since 2005
In 2005 Bell & Ross put an aircraft dashboard clock on the wrist: a round dial in a 46 mm square case held by four exposed screws. Bruno Belamich drew it, and twenty years later the brand says the shape no longer needs a name on the dial.
46 mm
width of the 2005 BR 01 case, still the line's standard
The BR 01 Instrument appeared at Basel in 2005 in four versions, the 92, 94, 96 and 97, in a 46 mm monobloc case. Its fastening system let the watch become a desk clock, a pendant or a dashboard piece.
A 42 mm BR-03 followed in 2006 and took the shape to a wider audience, while the BR-01 moved upmarket with tourbillon editions such as the 18-piece Phantom. The first BR-01 Skull arrived in 2009.
The 2010 Radar replaced hands with rotating disks, and its success led to the Red Radar in 2011 and six more instruments in 2012 and 2013, each limited to 999 pieces. All kept the 46 mm BR 01 case.
In the BR01's tenth year Bell & Ross issued a bronze BR01-92 Air Skull. In 2016 the Burning Skull covered every face of the case with ink-filled engravings.
The Cyber Skull of 2020 rebuilt the skull theme in faceted form, and a full sapphire version followed in 2021 in a 45 mm case. In 2025 the brand marked twenty years of the BR-01 with its 20 Years of Boldness campaign.
2021. A one-of-a-kind BR 01 Cyber Skull with an orange crystal skull sold for CHF220,000 at Only Watch 2021, a month before the clear sapphire series was unveiled.
2015. The unique BR01 Skull Bronze Tourbillon, in an aged bronze case with a hand-engraved gold skull, sold for CHF 100,000 at the Only Watch charity auction run by Phillips in Geneva.
2005. The BR 01 drew sharply divided reactions at its Basel 2005 debut; La Cote des Montres called it the most newsworthy concept watch of the year.
Co-founder and creative director of Bell & Ross, he designed the BR 01 by translating an aircraft panel clock into a 46 mm square wristwatch. Carlos Rosillo credits the design to him, and Belamich names it his favourite of the watches he designed.
Cyber Skull Sapphire: case, skull and crossbones in clear sapphire over a skull-shaped hand-wound BR-CAL.209 whose jaw moves when wound; 10 pieces.
Smaller case, 43.50 mm long by 45 mm wide, on translucent rubber.
The Burning Skull: a stamped relief skull on a lumed dial, with the steel case laser-engraved, ink-filled and fired; 500 pieces.
Width 46 mm; delivered with brown alligator and black synthetic canvas straps.
Two of the three 2012 Flight Instruments: an artificial-horizon dial and an altimeter whose pressure window became the date, each limited to 999 pieces.
WatchBase gives 46 mm and a 24 mm lug width for the Horizon.
Three concentric disks marked in red, yellow and green replace the hands, read against a radar grid; 500 pieces.
46 x 46 mm case on rubber.
A tourbillon with regulator display, trust index and 120-hour power reserve, in titanium, limited to 18 pieces.
46 mm case, the same BR 01 format.
BR 01-92 and BR 01-94: The launch pair: the 92 and the 94 chronograph, joined by the 96 and 97 variants, in satin steel or black finish.
46 mm case; supplied on leather or heavy-duty synthetic fabric.
Bell & Ross BR-01 references in our database. Each card says where its width comes from: listed by the maker (linked to the maker's page in the details), two independent sources agree, or listed in our database and not yet verified by us.
BR 01-92 Airborne
Lug width: 24 mm
Source: DatabaseCase size: 46 mmYear: 2009Skull dialCase material: Steel
BR 01-92 Radar
Lug width: 24 mm
Source: DatabaseCase size: 46 mmYear: 2010Black Radar dialCase material: Steel
BR 01-92 Horizon
Lug width: 24 mm
Source: DatabaseCase size: 46 mmYear: 2012Grey Horizon dialCase material: Steel
BR 01-96 Altimeter
Lug width: 24 mm
Source: DatabaseCase size: 46 mmYear: 2013Altimeter dialCase material: Steel
BR 01 Burning Skull
Lug width: 24 mm
Source: DatabaseCase size: 46 mmYear: 2018Black Skull dialCase material: Steel
BR 01 10 TH ANNIVERSARY
Lug width: Screwed bars
Source: DatabaseBR 01 COMPASS
Lug width: Screwed bars
Source: DatabaseBR 01 COMPASS ROSE GOLD & CARBON
Lug width: Screwed bars
Source: DatabaseBR 01 CYBER SKULL SAPPHIRE
Lug width: Screwed bars
Source: DatabaseSkeletonised/Openwork dial
BR 01 INSTRUMENT DE MARINE
Lug width: Screwed bars
Source: DatabaseBR 01 LAUGHING SKULL WHITE
Lug width: Screwed bars
Source: DatabaseBR 01 RED RADAR
Lug width: Screwed bars
Source: DatabaseBR 01 SKULL BRONZE
Lug width: Screwed bars
Source: DatabaseBR 01 SKULL FULL DIAMOND
Lug width: Screwed bars
Source: DatabaseBR 01 SKULL II
Lug width: Screwed bars
Source: DatabaseBR 01 SKULL LIGHT DIAMOND
Lug width: Screwed bars
Source: DatabaseBR 01 tourbillon airborne
Lug width: Screwed bars
Source: DatabaseBR 01 TOURBILLON
Lug width: Screwed bars
Source: DatabaseBR 01 TOURBILLON PHANTOM
Lug width: Screwed bars
Source: DatabaseBR 01 TOURBILLON ROSE GOLD & TITANIUM
Lug width: Screwed bars
Source: DatabaseBR 01 TOURBILLON ROSE GOLD
Lug width: Screwed bars
Source: DatabaseBR 01-92 AIRSPEED
Lug width: Screwed bars
Source: DatabaseBR 01-92 CARBON
Lug width: Screwed bars
Source: DatabaseBR 01-92 CARBON FIBER
Lug width: Screwed bars
Source: DatabaseBR 01-92 CARBON FIBER PHANTOM
Lug width: Screwed bars
Source: DatabaseBR 01-92 CASINO ROSE GOLD & CARBON
Lug width: Screwed bars
Source: DatabaseBR 01-92 CERAMIC
Lug width: Screwed bars
Source: DatabaseBR 01-92 GAUCHER
Lug width: Screwed bars
Source: DatabaseBR 01-92 GOLD INGOT
Lug width: Screwed bars
Source: DatabaseBR 01-92 HEADING INDICATOR
Lug width: Screwed bars
Source: DatabaseBR 01-92 HERITAGE
Lug width: Screwed bars
Source: DatabaseBR 01-92 ROSE GOLD & CARBON
Lug width: Screwed bars
Source: DatabaseBR 01-92 STEEL
Lug width: Screwed bars
Source: DatabaseBR 01-92 TURN COORDINATOR
Lug width: Screwed bars
Source: DatabaseBR 01-93 GMT
Lug width: Screwed bars
Source: DatabaseBR 01-94 B-ROCKET
Lug width: Screwed bars
Source: DatabaseBR 01-94 CARBON
Lug width: Screwed bars
Source: DatabaseBR 01-94 CARBON FIBER
Lug width: Screwed bars
Source: DatabaseBR 01-94 CARBON FIBER PHANTOM
Lug width: Screwed bars
Source: DatabaseBR 01-94 PRO TITANIUM
Lug width: Screwed bars
Source: DatabaseBR 01-94 PRO TITANIUM CARBON FIBER DIAL
Lug width: Screwed bars
Source: DatabaseBR 01-94 ROSE GOLD & CARBON
Lug width: Screwed bars
Source: DatabaseBR 01-94 ROSE GOLD & CARBON OFFICER
Lug width: Screwed bars
Source: DatabaseBR 01-94 STEEL
Lug width: Screwed bars
Source: DatabaseBR 01-94 TITANIUM
Lug width: Screwed bars
Source: DatabaseBR 01-96 GRANDE DATE
Lug width: Screwed bars
Source: DatabaseBR 01-97 CLIMB
Lug width: Screwed bars
Source: DatabaseBR 01-97 RESERVE DE MARCHE
Lug width: Screwed bars
Source: DatabaseBR 01-97 RESERVE DE MARCHE ROSE GOLD
Lug width: Screwed bars
Source: DatabaseBR-01 CYBER SKULL
Lug width: Screwed bars
Source: DatabaseBR-01 Cyber Skull Bronze
Lug width: Screwed bars
Source: DatabaseBR-01 Cyber Skull Sapphire Ice Blue
Lug width: Screwed bars
Source: DatabaseBR-01 LAUGHING SKULL
Lug width: Screwed bars
Source: DatabaseWhite dial
BR-01 laughing skull full diamond
Lug width: Screwed bars
Source: DatabaseNo reference matches.
The Bell & Ross BR-01 takes a 24 mm strap: all 5 references with a known width use 24 mm. These widths come from our database and are not yet verified.
24 mm. Bell & Ross sells its BR-01 straps with a 24 mm lug width and a 24 mm buckle width, and Delugs also lists the BR 01 at 24 mm.
No. The maker's BR-01 straps are sold without a buckle and are compatible only with BR-03, BR-01 and BR-X1 buckles, so keep your original buckle or order one.
The maker's strap collection groups 24 mm and 22 mm straps under one BR-03, BR-01, BR-X3, BR-X1 heading. For a 46 mm BR-01 the width given on the maker's 24 mm strap pages and by Delugs is 24 mm, so check the width before ordering.
Most are, from the tourbillons to the skulls. The Cyber Skull and Cyber Skull Sapphire are listed at 45 mm, the Sapphire measuring 43.50 mm long by 45 mm wide; Delugs lists ref. BR01-CSK-SAPHIR at 24 mm between the lugs.
Yes, by design. The case's fastening system lets the watch be turned from a wristwatch into a desk watch or pendant, or fixed to a dashboard.
The gap between the two lugs that hold the strap, in millimetres. A new strap must match it exactly: 20 mm lugs take a 20 mm strap.
Most watches use spring bars, so any strap of the right width fits. Many smartwatches use their own band system instead, such as Apple Watch bands or Garmin QuickFit.