Which is cheaper, the Maen Grand Tonneau Ultra Thin or the Helgray Poseidon Diver (Automatic)?

At MSRP the Helgray Poseidon Diver (Automatic) is the cheaper of the two at $249, against $1,519 for the Maen Grand Tonneau Ultra Thin — a $1,270 gap before any retailer discounting.

Which is bigger, the Maen Grand Tonneau Ultra Thin or the Helgray Poseidon Diver (Automatic)?

The Helgray Poseidon Diver (Automatic) wears larger at 40mm versus 34mm for the Maen Grand Tonneau Ultra Thin — a 6mm difference across the dial.

Which has better water resistance, the Maen Grand Tonneau Ultra Thin or the Helgray Poseidon Diver (Automatic)?

The Helgray Poseidon Diver (Automatic) is rated to 300m versus 50m for the Maen Grand Tonneau Ultra Thin.

Side by side

Maen Grand Tonneau Ultra ThinvsHelgray Poseidon Diver (Automatic)

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

Maen Grand Tonneau Ultra Thin

grand-tonneau-ultra-thin-mnl-04

MSRP $1,519

Helgray Poseidon Diver (Automatic)

poseidon-diver-automatic

MSRP $249

At a glance

10 of 29 specs differ

Diameter

Grand Tonneau Ultra Thin34mm

Poseidon Diver (Automatic)40mm

Power Reserve

Grand Tonneau Ultra Thin40h

Poseidon Diver (Automatic)40h

Water Resistance

Grand Tonneau Ultra Thin50m

Poseidon Diver (Automatic)300m

MSRP

Grand Tonneau Ultra Thin$1,519

Poseidon Diver (Automatic)$249

Full specifications

Case

7 specs

Crystal & Dial

1 specs

Dial Color

MNL.04

Black

Movement

1 specs

Caliber

—

NH35 Warranty

Pricing

1 specs

MSRP

$1,519

$249

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