Side by side

Maen Grand Tonneau Ultra ThinvsSeiko Prospex LX line

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
Prospex LX line
SeikoProspex LX line
MSRP $5,500

At a glance

15 of 29 specs differ
Diameter
Grand Tonneau Ultra Thin34mm
Prospex LX line44.8mm
Power Reserve
Grand Tonneau Ultra Thin40h
Prospex LX line72h
Water Resistance
Grand Tonneau Ultra Thin50m
Prospex LX line200m
MSRP
Grand Tonneau Ultra Thin$1,519
Prospex LX line$5,500

Full specifications

Case

7 specs
Category
Dress
GMT
Diameter
34mm
44.8mm
Thickness
6.4mm
14.7mm
Lug-to-Lug
50.9mm
Lug Width
22mm
Material
316L Stainless Steel
Titanium
Water Resistance
50m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Super-clear coating
Dial Color
MNL.04
Black
Lume
None
LumiBrite on hands and index(es)

Movement

4 specs
Caliber
5R66
Type
Automatic
Spring Drive
Power Reserve
40h
72h
Jewels
25
30

Pricing

1 specs
MSRP
$1,519
$5,500

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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.

Seiko Prospex LX line

Owners widely report the dial's blue-green sunburst is phenomenal, and the sapphire glass features blue AR coating. Some owners feel the high price limits discounts and sales, with one AD noting extremely low sales due to the cost. One owner reported DLC peeling off a two-week-old watch, and another noted quality control issues like bezel inserts and fallen second hands. On balance, owners consider the Seiko Prospex LX line a nicely built watch, though pricing led to poor sales and its discontinuation.

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