Which is cheaper, the Christopher Ward C63 Sealander Extreme GMT or the Helgray Poseidon Diver (Automatic)?

At MSRP the Helgray Poseidon Diver (Automatic) is the cheaper of the two at $249, against $1,850 for the Christopher Ward C63 Sealander Extreme GMT — a $1,601 gap before any retailer discounting.

Which is bigger, the Christopher Ward C63 Sealander Extreme GMT or the Helgray Poseidon Diver (Automatic)?

The Christopher Ward C63 Sealander Extreme GMT wears larger at 48mm versus 40mm for the Helgray Poseidon Diver (Automatic) — a 8mm difference across the dial.

Which has better water resistance, the Christopher Ward C63 Sealander Extreme GMT or the Helgray Poseidon Diver (Automatic)?

The Helgray Poseidon Diver (Automatic) is rated to 300m versus 150m for the Christopher Ward C63 Sealander Extreme GMT.

Which has a longer power reserve, the Christopher Ward C63 Sealander Extreme GMT or the Helgray Poseidon Diver (Automatic)?

The Christopher Ward C63 Sealander Extreme GMT carries a 56-hour power reserve against 40 hours on the Helgray Poseidon Diver (Automatic).

What movement does the Christopher Ward C63 Sealander Extreme GMT run compared to the Helgray Poseidon Diver (Automatic)?

Both watches run automatic movements — the Christopher Ward C63 Sealander Extreme GMT uses the SW330 and the Helgray Poseidon Diver (Automatic) uses the NH35 Warranty.

Side by side

Christopher Ward C63 Sealander Extreme GMTvsHelgray Poseidon Diver (Automatic)

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

Christopher Ward C63 Sealander Extreme GMT

C63-41AGM4-S0KK0-NO

MSRP $1,850

Helgray Poseidon Diver (Automatic)

poseidon-diver-automatic

MSRP $249

At a glance

14 of 29 specs differ

Diameter

C63 Sealander Extreme GMT48mm

Poseidon Diver (Automatic)40mm

Power Reserve

C63 Sealander Extreme GMT56h

Poseidon Diver (Automatic)40h

Water Resistance

C63 Sealander Extreme GMT150m

Poseidon Diver (Automatic)300m

MSRP

C63 Sealander Extreme GMT$1,850

Poseidon Diver (Automatic)$249

Full specifications

Case

7 specs

Crystal & Dial

2 specs

AR Coating

Underside

Inner

Lume

SLN X1 BL / GL

None

Movement

4 specs

Caliber

SW330

NH35 Warranty

Beat Rate

4 vph

28,800 vph

Power Reserve

56h

40h

Complications

GMT, Moonphase, Day-date

None

Pricing

1 specs

MSRP

$1,850

$249

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