Side by side

Maen Grand Tonneau Ultra ThinvsZelos Hammerhead V3 300m Titanium

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
Hammerhead V3 300m Titanium
ZelosHammerhead V3 300m Titanium
MSRP $559

At a glance

11 of 29 specs differ
Diameter
Grand Tonneau Ultra Thin34mm
Hammerhead V3 300m Titanium44mm
Power Reserve
Grand Tonneau Ultra Thin40h
Hammerhead V3 300m Titanium40h
Water Resistance
Grand Tonneau Ultra Thin50m
Hammerhead V3 300m Titanium300m
MSRP
Grand Tonneau Ultra Thin$1,519
Hammerhead V3 300m Titanium$559

Full specifications

Case

7 specs
Category
Dress
Diver
Diameter
34mm
44mm
Thickness
6.4mm
13mm
Lug-to-Lug
44mm
Lug Width
22mm
Material
316L Stainless Steel
Titanium
Water Resistance
50m
300m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
MNL.04
Ti - Mosaic MOP

Movement

1 specs
Caliber
Seiko NH35

Pricing

1 specs
MSRP
$1,519
$559

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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.

Zelos Hammerhead V3 300m Titanium

The Zelos Hammerhead V3 300m Titanium is widely praised for its exceptional lume, unique and beautiful dial finishing that reflects light dramatically, and solid build quality that exceeds its price point. Owners also highlight its comfortable wearability, especially the lightweight titanium variant, and the convenient on-the-fly micro-adjustment on the bracelet. One owner notes the Japanese movement performs better than anticipated, and the Ti-Damascus variant features a unique, patterned dial and bezel. However, some owners find the 44mm size large, the crown "off," and the bracelet clasp could be more scratch-resistant, with resizing pins described as stubborn. Reattaching the bracelet after removal is also noted as extremely difficult. Overall, owners rate the Zelos Hammerhead V3 300m Titanium highly for its impressive dial aesthetics and value for money.

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