Side by side

Maen Grand Tonneau Ultra ThinvsTudor Black Bay GMT

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
Black Bay GMT
TudorBlack Bay GMT
MSRP $5,275

At a glance

21 of 29 specs differ
Diameter
Grand Tonneau Ultra Thin34mm
Black Bay GMT41mm
Power Reserve
Grand Tonneau Ultra Thin40h
Black Bay GMT70h
Water Resistance
Grand Tonneau Ultra Thin50m
Black Bay GMT200m
MSRP
Grand Tonneau Ultra Thin$1,519
Black Bay GMT$5,275

Full specifications

Case

9 specs
Category
Dress
GMT
Diameter
34mm
41mm
Thickness
6.4mm
14.6mm
Lug-to-Lug
46mm
Lug Width
22mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Polished + Satin
Water Resistance
50m
200m
Caseback
Solid
Solid screw-down

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
MNL.04
Black
Indices
Applied

Movement

7 specs
Caliber
MT5652
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
70h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
GMT

Pricing

1 specs
MSRP
$1,519
$5,275

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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.

Tudor Black Bay GMT

The Tudor Black Bay GMT is widely praised for its in-house movement offering local jumping GMT functionality, its impressive case finishing, and its vintage-inspired, drop-dead good looks. Reviewers highlight its strong value and consider it a quintessential sport watch for travelers. Some enthusiasts find its 15mm thickness divisive, though beveled edges visually reduce its perceived size. Overall, reviewers rate the Tudor Black Bay GMT highly for its excellent design and travel functionality at its price point.

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