Side by side

Bell & Ross BR-05 DiamondvsLongines ULTRA-CHRON CLASSIC

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

BR-05 Diamond
Bell & RossBR-05 Diamond
MSRP $24,829
ULTRA-CHRON CLASSIC
LonginesULTRA-CHRON CLASSIC
MSRP $3,900

At a glance

19 of 29 specs differ
Diameter
BR-05 Diamond40mm
ULTRA-CHRON CLASSIC37mm
Power Reserve
BR-05 Diamond
ULTRA-CHRON CLASSIC52h
Water Resistance
BR-05 Diamond100m
ULTRA-CHRON CLASSIC50m
MSRP
BR-05 Diamond$24,829
ULTRA-CHRON CLASSIC$3,900

Full specifications

Case

7 specs
Diameter
40mm
37mm
Thickness
10.95mm
Lug-to-Lug
44.6mm
Lug Width
19mm
Finish
Water Resistance
100m
50m
Caseback
Screw-down case back

Crystal & Dial

4 specs
Crystal Shape
AR Coating
Underside
Both sides
Dial Color
Black
Silver
Indices
Applied indices
Applied indexes

Movement

7 specs
Caliber
BR-CAL.321
L836.6
Beat Rate
36,000 vph
Power Reserve
52h
Jewels
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
Hours/Minutes, Seconds, Date
Hours, minutes, seconds and date

Pricing

1 specs
MSRP
$24,829
$3,900

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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 Diamond

Owners widely praise the Bell & Ross BR-05 Diamond's design and build quality, noting its comfortable wearability and a less derivative appearance in person. The contrast between brushed and polished finishes, along with the blue sunray dial, contributes to its appeal as a versatile integrated steel sports watch. Some owners, however, find the crown to be a bit fussy and criticize the high price relative to the SW300-1 movement. On balance, owners rate the Bell & Ross BR-05 Diamond highly for its striking design and versatile wearability.

Longines ULTRA-CHRON CLASSIC

The Longines ULTRA-CHRON CLASSIC is widely praised for its faithful retro design, high-beat 5Hz movement offering greater precision and a smooth seconds hand, and its value proposition as a new 5Hz watch. Reviewers highlight the L836.6 caliber's TimeLab "ultra chronometer" certification for superior accuracy and shock recovery, and owners find the bracelet very comfortable with easy micro-adjust. Some owners note the design appears dated, and one reviewer points out the dial lacks luminescence and water resistance is only 50m. Owners are split on sizing, with some finding the 40mm case wears larger than expected and recommending the 37mm version. Overall, owners and reviewers rate the Longines ULTRA-CHRON CLASSIC highly for its blend of vintage aesthetics, modern high-beat movement performance, and comfortable wearability.

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