Which is cheaper, the Glycine Airman SST GMT or the Helgray Poseidon Diver (Automatic)?

At MSRP the Helgray Poseidon Diver (Automatic) is the cheaper of the two at $249, against $3,400 for the Glycine Airman SST GMT — a $3,151 gap before any retailer discounting.

Which is bigger, the Glycine Airman SST GMT or the Helgray Poseidon Diver (Automatic)?

The Glycine Airman SST GMT wears larger at 43mm versus 40mm for the Helgray Poseidon Diver (Automatic) — a 3mm difference across the dial.

Which has better water resistance, the Glycine Airman SST GMT or the Helgray Poseidon Diver (Automatic)?

The Helgray Poseidon Diver (Automatic) is rated to 300m versus 200m for the Glycine Airman SST GMT.

Which has a longer power reserve, the Glycine Airman SST GMT or the Helgray Poseidon Diver (Automatic)?

The Glycine Airman SST GMT carries a 48-hour power reserve against 40 hours on the Helgray Poseidon Diver (Automatic).

What movement does the Glycine Airman SST GMT run compared to the Helgray Poseidon Diver (Automatic)?

Both watches run automatic movements — the Glycine Airman SST GMT uses the SW330-2 and the Helgray Poseidon Diver (Automatic) uses the NH35 Warranty.

Side by side

Glycine Airman SST GMTvsHelgray Poseidon Diver (Automatic)

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

Glycine Airman SST GMT

GL0314

MSRP $3,400

Helgray Poseidon Diver (Automatic)

poseidon-diver-automatic

MSRP $249

At a glance

17 of 29 specs differ

Diameter

Airman SST GMT43mm

Poseidon Diver (Automatic)40mm

Power Reserve

Airman SST GMT48h

Poseidon Diver (Automatic)40h

Water Resistance

Airman SST GMT200m

Poseidon Diver (Automatic)300m

MSRP

Airman SST GMT$3,400

Poseidon Diver (Automatic)$249

Full specifications

Case

8 specs

Crystal & Dial

5 specs

Crystal Shape

—

Flat

AR Coating

—

Inner

Dial Color

Grey

Black

Indices

—

Applied

Lume

Luminous

None

Movement

3 specs

Caliber

SW330-2

NH35 Warranty

Power Reserve

48h

40h

Complications

GMT, Date

None

Pricing

1 specs

MSRP

$3,400

$249

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