Side by side

Bell & Ross BR-05 Blue Diamond EaglevsLongines PrimaLuna Moonphase

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
PrimaLuna Moonphase
LonginesPrimaLuna Moonphase
MSRP $2,950

At a glance

20 of 29 specs differ
Diameter
BR-05 Blue Diamond Eagle36mm
PrimaLuna Moonphase34mm
Power Reserve
BR-05 Blue Diamond Eagle54 hoursh
PrimaLuna Moonphase72h
Water Resistance
BR-05 Blue Diamond Eagle100m
PrimaLuna Moonphase30m
MSRP
BR-05 Blue Diamond Eagle$5,292
PrimaLuna Moonphase$2,950

Full specifications

Case

8 specs
Category
Moonphase
Diameter
36mm
34mm
Thickness
8.7mm
11.6mm
Lug-to-Lug
41mm
Lug Width
8mm
Finish
Water Resistance
100m
30m
Caseback
Transparent case back with sapphire crystal

Crystal & Dial

4 specs
Crystal Shape
AR Coating
Underside
Both sides
Indices
Diamond indexes
Lume
None
Super-LumiNova

Movement

7 specs
Caliber
BR-CAL.329
L899.5
Beat Rate
25,200 vph
Power Reserve
54 hoursh
72h
Jewels
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
Hours/Minutes, Seconds
Hours, minutes, seconds and date, Moon phase display at 6 o'clock

Pricing

1 specs
MSRP
$5,292
$2,950

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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.

Longines PrimaLuna Moonphase

The Longines PrimaLuna Moonphase features a fluid case design and a 72-hour power reserve from its automatic movement. Owners note its accuracy averages 1.3 seconds lost per day across six positions, and 3 to 4 seconds on the wrist, performing within COSC standards. Previously, moon phase models utilized quartz movements, a detail that may not appeal to mechanical watch enthusiasts. Overall, owners rate the Longines PrimaLuna Moonphase highly for its updated automatic movement and reliable timekeeping.

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