Side by side

Bell & Ross BR 01 INSTRUMENT DE MARINEvsNOMOS Glashütte Tetra 27 duo

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

BR 01 INSTRUMENT DE MARINE
Bell & RossBR 01 INSTRUMENT DE MARINE
MSRP $8,532
Tetra 27 duo
NOMOS GlashütteTetra 27 duo
MSRP $2,090

At a glance

15 of 29 specs differ
Diameter
BR 01 INSTRUMENT DE MARINE46mm
Tetra 27 duo27.5mm
Power Reserve
BR 01 INSTRUMENT DE MARINE56 hoursh
Tetra 27 duo53 hoursh
Water Resistance
BR 01 INSTRUMENT DE MARINE100m
Tetra 27 duo50m
MSRP
BR 01 INSTRUMENT DE MARINE$8,532
Tetra 27 duo$2,090

Full specifications

Case

7 specs
Category
Dress
Diameter
46mm
27.5mm
Thickness
6.1mm
Lug-to-Lug
38.5mm
Lug Width
18mm
Material
Bronze
Stainless Steel
Water Resistance
100m
50m

Crystal & Dial

2 specs
AR Coating
Underside
Indices
Roman numerals

Movement

5 specs
Caliber
BR-CAL.203
DUW 4001
Beat Rate
21,600 vph
Power Reserve
56 hoursh
53 hoursh
Jewels
17
Complications
Hours/Minutes
None

Pricing

1 specs
MSRP
$8,532
$2,090

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Bell & Ross BR 01 INSTRUMENT DE MARINE

The Bell & Ross BR 01 is recognized as a bold, 46mm "instrumentation watch" that drew inspiration from airplane cockpit altimeters upon its 2005 release. While one reviewer found a smaller variant in the line too flat and difficult to wear, the BR 01's unique design and historical significance are acknowledged. On balance, the Bell & Ross BR 01 is noted for its distinctive cockpit-inspired aesthetic and its impact on watch design at its launch.

NOMOS Glashütte Tetra 27 duo

Owners widely praise the NOMOS Glashütte Tetra 27 duo for its ideal small and light wearing dimensions, beautiful dial that shifts with lighting, and gorgeous blued hands, with some finding its 27mm size perfect for vintage preferences. The watch is noted for its precise, Art Deco-inspired design and good finishing. However, some owners and reviewers consider the 27.5mm size too small, labeling it a women's watch, though others find it unisex and note its square shape can make it wear larger. One owner flags the buckle as disappointingly generic and the grey suede strap as prone to getting dirty. Overall, owners and reviewers highly regard the NOMOS Glashütte Tetra 27 duo for its elegant design and comfortable wearability at its price point.

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