Side by side

Bell & Ross BR-05 Blue Diamond EaglevsTudor Black Bay One 31 S&G

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

BR-05 Blue Diamond Eagle
Bell & RossBR-05 Blue Diamond Eagle
MSRP $5,292
Black Bay One 31 S&G
TudorBlack Bay One 31 S&G
MSRP $6,850

At a glance

16 of 29 specs differ
Diameter
BR-05 Blue Diamond Eagle36mm
Black Bay One 31 S&G31mm
Power Reserve
BR-05 Blue Diamond Eagle54 hoursh
Black Bay One 31 S&G50h
Water Resistance
BR-05 Blue Diamond Eagle100m
Black Bay One 31 S&G100m
MSRP
BR-05 Blue Diamond Eagle$5,292
Black Bay One 31 S&G$6,850

Full specifications

Case

6 specs
Diameter
36mm
31mm
Thickness
8.7mm
9.5mm
Lug-to-Lug
46mm
Lug Width
17mm
Finish
Polished + Satin
Caseback
Solid screw-down

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Underside
Inner
Dial Color
Blue
Black
Indices
Applied

Movement

5 specs
Caliber
BR-CAL.329
MT5201
Beat Rate
28,800 vph
Power Reserve
54 hoursh
50h
Jewels
25
Complications
Hours/Minutes, Seconds
None

Pricing

1 specs
MSRP
$5,292
$6,850

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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-05 Blue Diamond Eagle

Owners widely praise the Bell & Ross BR-05 36 MM Blue Diamond Eagle's design, dial, and the contrast between brushed and polished finishes, finding it a compelling integrated steel sports watch. One owner notes the crown can be fussy. The £4k price is considered high, especially given the SW300-1 movement. On balance, owners find the Bell & Ross BR-05 36 MM Blue Diamond Eagle's design and finishing compelling, though the price point is a significant consideration.

Tudor Black Bay One 31 S&G

The Tudor Black Bay One 31 S&G is praised for its quiet luxury, combining brushed steel and warm gold accents for understated charm. Owners appreciate the brushed gold for a casual two-tone look and the champagne dial's surprising legibility. Some find the case sides too thick, and one user expressed a desire for a smaller S&G variant. The watch features the MT5612 movement with a 70-hour power reserve and a date function, within a 200-meter water-resistant case. Overall, owners and reviewers highlight the Tudor Black Bay One 31 S&G's balanced two-tone aesthetic as its primary appeal.

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