Which is cheaper, the Oak & Oscar The Humboldt GMT or the Helgray Poseidon Diver (Automatic)?

At MSRP the Helgray Poseidon Diver (Automatic) is the cheaper of the two at $249, against $2,175 for the Oak & Oscar The Humboldt GMT — a $1,926 gap before any retailer discounting.

Which is bigger, the Oak & Oscar The Humboldt GMT or the Helgray Poseidon Diver (Automatic)?

The Helgray Poseidon Diver (Automatic) wears larger at 40mm versus 39.5mm for the Oak & Oscar The Humboldt GMT — a 0.5mm difference across the dial.

Which has better water resistance, the Oak & Oscar The Humboldt GMT or the Helgray Poseidon Diver (Automatic)?

The Helgray Poseidon Diver (Automatic) is rated to 300m versus 200m for the Oak & Oscar The Humboldt GMT.

Which has a longer power reserve, the Oak & Oscar The Humboldt GMT or the Helgray Poseidon Diver (Automatic)?

The Helgray Poseidon Diver (Automatic) carries a 40-hour power reserve against 56 hours hours on the Oak & Oscar The Humboldt GMT.

What movement does the Oak & Oscar The Humboldt GMT run compared to the Helgray Poseidon Diver (Automatic)?

Both watches run automatic movements — the Oak & Oscar The Humboldt GMT uses the Sellita SW330 and the Helgray Poseidon Diver (Automatic) uses the NH35 Warranty.

Side by side

Oak & Oscar The Humboldt GMTvsHelgray Poseidon Diver (Automatic)

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

Oak & Oscar The Humboldt GMT

HMBDLTGMT

MSRP $2,175

Helgray Poseidon Diver (Automatic)

poseidon-diver-automatic

MSRP $249

At a glance

16 of 29 specs differ

Diameter

The Humboldt GMT39.5mm

Poseidon Diver (Automatic)40mm

Power Reserve

The Humboldt GMT56 hoursh

Poseidon Diver (Automatic)40h

Water Resistance

The Humboldt GMT200m

Poseidon Diver (Automatic)300m

MSRP

The Humboldt GMT$2,175

Poseidon Diver (Automatic)$249

Full specifications

Case

8 specs

Crystal & Dial

4 specs

Crystal Shape

Double-domed

Flat

AR Coating

Underside

Inner

Dial Color

White

Black

Lume

Super-LumiNova

None

Movement

3 specs

Caliber

Sellita SW330

NH35 Warranty

Beat Rate

4 vph

28,800 vph

Power Reserve

56 hoursh

40h

Pricing

1 specs

MSRP

$2,175

$249

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