Side by side

Maen Grand Tonneau Ultra ThinvsGrand Seiko SLGB023

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
SLGB023
Grand SeikoSLGB023
MSRP $12,400

At a glance

13 of 29 specs differ
Diameter
Grand Tonneau Ultra Thin34mm
SLGB02340.8mm
Power Reserve
Grand Tonneau Ultra Thin40h
SLGB02372h
Water Resistance
Grand Tonneau Ultra Thin50m
SLGB023300m
MSRP
Grand Tonneau Ultra Thin$1,519
SLGB023$12,400

Full specifications

Case

7 specs
Category
Dress
Diver
Diameter
34mm
40.8mm
Thickness
6.4mm
12.9mm
Lug-to-Lug
48.5mm
Lug Width
21mm
Material
316L Stainless Steel
Titanium
Water Resistance
50m
300m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Dial Color
MNL.04
Black

Movement

3 specs
Caliber
9RB1
Type
Automatic
Spring Drive
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$1,519
$12,400

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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.

Grand Seiko SLGB023

Owners and reviewers widely praise the Grand Seiko SLGB023 for its comfortable 40.8mm titanium case and the smooth winding feel of its Spring Drive 9RB1 movement. The dial's gradient blue "ushio" motif is a highlight, though some reviewers note the bezel's fully lumed scale as a missed opportunity. Enthusiasts are divided on the power reserve indicator's placement and the design of the hour and minute hands. Overall, owners and reviewers rate the Grand Seiko SLGB023 highly for its comfortable titanium case and the refined Spring Drive movement.

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