Side by side

Bell & Ross BR-X2 tourbillon skeleton micro rotorvsMaen Grand Tonneau Ultra Thin

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

BR-X2 tourbillon skeleton micro rotor
Bell & RossBR-X2 tourbillon skeleton micro rotor
MSRP $74,520
Grand Tonneau Ultra Thin
MaenGrand Tonneau Ultra Thin
MSRP $1,519

At a glance

17 of 29 specs differ
Diameter
BR-X2 tourbillon skeleton micro rotor42.5mm
Grand Tonneau Ultra Thin34mm
Power Reserve
BR-X2 tourbillon skeleton micro rotor
Grand Tonneau Ultra Thin40h
Water Resistance
BR-X2 tourbillon skeleton micro rotor50m
Grand Tonneau Ultra Thin50m
MSRP
BR-X2 tourbillon skeleton micro rotor$74,520
Grand Tonneau Ultra Thin$1,519

Full specifications

Case

6 specs
Category
Skeleton
Dress
Diameter
42.5mm
34mm
Thickness
6.4mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Underside
Inner
Dial Color
Skeleton
MNL.04
Indices
Applied indices
Applied
Lume
Super-LumiNova
None

Movement

5 specs
Caliber
BR-CAL.381
Beat Rate
28,800 vph
Power Reserve
40h
Jewels
25
Complications
Hours/Minutes, Tourbillon
None

Pricing

1 specs
MSRP
$74,520
$1,519

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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-X2 tourbillon skeleton micro rotor

The Bell & Ross BR-X2 tourbillon skeleton micro rotor is praised for its novel design, integrating the case and movement into a single sapphire crystal structure. Owners find the 42.5mm watch comfortable for daily wear and note its masculine appeal. Reviewers flag that the satin-finished hands can blend too much with the dial, impacting legibility.

Maen Grand Tonneau Ultra Thin

Owners widely report the Maen Grand Tonneau Ultra Thin features a La Joux-Perret D101 manual-wind movement and a double-layer enamel dial. Some owners criticize the bracelet design and find the dial too small and lacking indices. One owner describes the Maen Grand Tonneau Ultra Thin as "hideous with a good movement." On balance, owners are divided on the Maen Grand Tonneau Ultra Thin, with some appreciating its movement and dial while others find its design unappealing.

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