Which is cheaper, the Fortis Marinemaster M-40 or the Helgray Poseidon Diver (Automatic)?

At MSRP the Helgray Poseidon Diver (Automatic) is the cheaper of the two at $249, against $3,520 for the Fortis Marinemaster M-40 — a $3,271 gap before any retailer discounting.

Which has a longer power reserve, the Fortis Marinemaster M-40 or the Helgray Poseidon Diver (Automatic)?

The Helgray Poseidon Diver (Automatic) carries a 40-hour power reserve against 38 hours on the Fortis Marinemaster M-40.

What movement does the Fortis Marinemaster M-40 run compared to the Helgray Poseidon Diver (Automatic)?

Both watches run automatic movements — the Fortis Marinemaster M-40 uses the Sellita SW220-1 and the Helgray Poseidon Diver (Automatic) uses the NH35 Warranty.

Side by side

Fortis Marinemaster M-40vsHelgray Poseidon Diver (Automatic)

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

Fortis Marinemaster M-40

M-40

MSRP $3,520

Helgray Poseidon Diver (Automatic)

poseidon-diver-automatic

MSRP $249

At a glance

8 of 29 specs differ

Diameter

Marinemaster M-4040mm

Poseidon Diver (Automatic)40mm

Power Reserve

Marinemaster M-4038h

Poseidon Diver (Automatic)40h

Water Resistance

Marinemaster M-40300m

Poseidon Diver (Automatic)300m

MSRP

Marinemaster M-40$3,520

Poseidon Diver (Automatic)$249

Full specifications

Case

3 specs

Thickness

13mm

12mm

Lug-to-Lug

—

46mm

Lug Width

21mm

20mm

Crystal & Dial

1 specs

Dial Color

Orange

Black

Movement

3 specs

Caliber

Sellita SW220-1

NH35 Warranty

Power Reserve

38h

40h

Jewels

Pricing

1 specs

MSRP

$3,520

$249

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