Which is cheaper, the Aera Instruments C-1 or the Christopher Ward C63 Sealander Extreme GMT?

At MSRP the Christopher Ward C63 Sealander Extreme GMT is the cheaper of the two at $1,850, against $2,200 for the Aera Instruments C-1 — a $350 gap before any retailer discounting.

Which is bigger, the Aera Instruments C-1 or the Christopher Ward C63 Sealander Extreme GMT?

The Christopher Ward C63 Sealander Extreme GMT wears larger at 48mm versus 42mm for the Aera Instruments C-1 — a 6mm difference across the dial.

Which has better water resistance, the Aera Instruments C-1 or the Christopher Ward C63 Sealander Extreme GMT?

The Christopher Ward C63 Sealander Extreme GMT is rated to 150m versus 100m for the Aera Instruments C-1.

What movement does the Aera Instruments C-1 run compared to the Christopher Ward C63 Sealander Extreme GMT?

Both watches run automatic movements — the Aera Instruments C-1 uses the SW510 BH B and the Christopher Ward C63 Sealander Extreme GMT uses the SW330.

Side by side

Aera Instruments C-1vsChristopher Ward C63 Sealander Extreme GMT

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

Aera Instruments C-1

MSRP $2,200

Christopher Ward C63 Sealander Extreme GMT

C63-41AGM4-S0KK0-NO

MSRP $1,850

At a glance

14 of 29 specs differ

Diameter

C-142mm

C63 Sealander Extreme GMT48mm

Power Reserve

C-156h

C63 Sealander Extreme GMT56h

Water Resistance

C-1100m

C63 Sealander Extreme GMT150m

MSRP

C-1$2,200

C63 Sealander Extreme GMT$1,850

Full specifications

Case

6 specs

Crystal & Dial

3 specs

AR Coating

Inner

Underside

Dial Color

Cloud

Black

Lume

None

SLN X1 BL / GL

Movement

4 specs

Caliber

SW510 BH B

SW330

Beat Rate

28,800 vph

4 vph

Jewels

Complications

None

GMT, Moonphase, Day-date

Pricing

1 specs

MSRP

$2,200

$1,850

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