The Basics

The Bell & Ross BR-X1 Instrument de Marine was introduced in 2016 as a limited edition of 2016 pieces, pairing the high-tech BR-X1 look with materials reminiscent of classic ship chronometers. The case is made up out of parts in Indian rose wood, bronze (CuSn8) and titanium, while the grey-tinted sapphire crystal dial offers a view of the BR-CAL.313 movement.

Brand: Bell & Ross
Family: Instruments
Reference: BRX1-CM-313
Name: BR-X1 Instrument de Marine
Produced: 2016
Limited: Yes, 99 units

Below is a detailed look at Bell & Ross’s model BRX1-CM-313 from Instruments watch family, including the price, case details and movement features.

Bell & Ross Instruments BRX1-CM-313

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The Details

Bell & Ross’s BR-X1 Instrument de Marine (BRX1-CM-313) was originally released in 2016. This watch features a automatic movement beating at a frequency of 28800 bph (4 Hz) to provide a 42-hour power reserve when fully wound.

The Case

The titanium, bronze, wood case measures 45mm in diameter and roughly mm thick, with 24mm lug width. The square case is paired with a skeleton color dial with stick-shaped hands, and a roman numerals hour markers and minute track, covered by a sapphire glass. Bell & Ross’s Instruments model BRX1-CM-313 is water resistant up to 100 meters (328 ft). A display caseback is over the back of the watch case.

Material: Titanium, Bronze, Wood
Glass: Sapphire
Back: Display
Shape: Square
Diameter: 45mm
Height: mm
Lug Width: 24mm
W/R: 100

Case Diameter

Case Thickness

Lug Width

Water Resistance

The Movement

The Instruments BRX1-CM-313 movement is a powered by caliber BR-CAL.313 made by Bell & Ross. The 56-jewel automatic movement is 28mm in diameter. Its balance wheel oscillates at 28800 semi-oscillations per hour or 4 Hz. This movement offers a 42-hour power reserve.

Type: Automatic
Brand: Bell & Ross
Caliber: BR-CAL.313
Base: ETA 2894-2
Display: Analog
Diameter: 28mm
Jewels: 56
Reserve: 42 hours
Frequency: 28800 bph
Time: Hours, Minutes, Small Seconds

The Price

How much does the Bell & Ross’s Instruments BRX1-CM-313 cost? This watch was introduced in 2016 and has been in Bell & Ross’s collection for around . This watch is a limited edition with just 99 pieces released. As with most luxury watches, the price of depends on the availability and demand.


For more information, visit Bell & Ross online.


  • Brand: Bell & Ross
  • Model: BR-X1 Instrument de Marine
  • Reference Number: BRX1-CM-313
  • Limited: Yes, 99 units

Case & Dial:

  • Material: Titanium, Bronze, Wood
  • Glass: Sapphire
  • Back: Display
  • Diameter: 45
  • Thickness:
  • Lug Width: 24
  • Dial Color: Skeleton
  • Indexes: Roman Numerals and Stick-shaped hands
  • Water Resistance: 100 meters


  • Winding: Automatic
  • Brand: Bell & Ross
  • Caliber: BR-CAL.313
  • Display: Analog
  • Diameter: 28mm
  • Jewels: 56
  • Power Reserve: 42 hours
  • Frequency: 28800 bph
  • Functions: Hours, Minutes, Small Seconds

About Bell & Ross

Bell & Ross logo

Bruno Belamich and Carlos Rosillo founded Bell & Ross in 1992, focusing on aviator and diving watches. Today, its manufacturing is based in La Chaux-de-Fonds, Switzerland. The brand’s Vintage Collection includes the PW1, WW1, WW2, and Vintage BR models.

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