Side by side

Maen Grand Tonneau Ultra ThinvsFears Onyx (collective Horology)

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

Grand Tonneau Ultra Thin
MaenGrand Tonneau Ultra Thin
MSRP $1,519
Onyx (collective Horology)
FearsOnyx (collective Horology)
MSRP $2,833

At a glance

10 of 29 specs differ
Diameter
Grand Tonneau Ultra Thin34mm
Onyx (collective Horology)39.5mm
Power Reserve
Grand Tonneau Ultra Thin40h
Onyx (collective Horology)40h
Water Resistance
Grand Tonneau Ultra Thin50m
Onyx (collective Horology)15m
MSRP
Grand Tonneau Ultra Thin$1,519
Onyx (collective Horology)$2,833

Full specifications

Case

6 specs
Category
Dress
Sport
Diameter
34mm
39.5mm
Thickness
6.4mm
20mm
Lug-to-Lug
46.95mm
Lug Width
20mm
Water Resistance
50m
15m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
MNL.04
Onyx (Collective Horology)

Movement

1 specs
Caliber
La Joux-Perret G101

Pricing

1 specs
MSRP
$1,519
$2,833

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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.

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.

Fears Onyx (collective Horology)

Owners widely praise the Fears Onyx (collective Horology) for its exquisite glossy black onyx dial, which displays microscopic striations under magnification. Reviewers note its thin case, under 10.5mm, and a balanced sporty-dressy aesthetic. Water resistance is rated at 150m by one source and 100m by another, and the bracelet features on-the-fly micro-adjustment. Some owners find the 39.5mm diameter slightly large for the style, and one source suggests it doesn't represent top value, though it remains competitive. Overall, owners rate the Fears Onyx highly for its unique stone dial and wearability.

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