Which is cheaper, the CWC Quartz Divers Watch Mk.2 Day/Date Polished Case or the Seiko Astron GPS Solar 2026 Limited Edition?

At MSRP the CWC Quartz Divers Watch Mk.2 Day/Date Polished Case is the cheaper of the two at $608, against $2,400 for the Seiko Astron GPS Solar 2026 Limited Edition — a $1,793 gap before any retailer discounting.

Which is bigger, the CWC Quartz Divers Watch Mk.2 Day/Date Polished Case or the Seiko Astron GPS Solar 2026 Limited Edition?

The Seiko Astron GPS Solar 2026 Limited Edition wears larger at 41.2mm versus 41mm for the CWC Quartz Divers Watch Mk.2 Day/Date Polished Case — a 0.2mm difference across the dial.

Which has better water resistance, the CWC Quartz Divers Watch Mk.2 Day/Date Polished Case or the Seiko Astron GPS Solar 2026 Limited Edition?

The CWC Quartz Divers Watch Mk.2 Day/Date Polished Case is rated to 300m versus 10m for the Seiko Astron GPS Solar 2026 Limited Edition.

What movement does the CWC Quartz Divers Watch Mk.2 Day/Date Polished Case run compared to the Seiko Astron GPS Solar 2026 Limited Edition?

Both watches run quartz movements — the CWC Quartz Divers Watch Mk.2 Day/Date Polished Case uses the Ronda 517 and the Seiko Astron GPS Solar 2026 Limited Edition uses the 3X62.

Side by side

CWC Quartz Divers Watch Mk.2 Day/Date Polished CasevsSeiko Astron GPS Solar 2026 Limited Edition

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

CWC Quartz Divers Watch Mk.2 Day/Date Polished Case

cwc-quartz-divers-watch-rn300-p-qs120-dd

MSRP $608

Seiko Astron GPS Solar 2026 Limited Edition

ssj039j1

MSRP $2,400

At a glance

12 of 29 specs differ

Diameter

Quartz Divers Watch Mk.2 Day/Date Polished Case41mm

Astron GPS Solar 2026 Limited Edition41.2mm

Power Reserve

Quartz Divers Watch Mk.2 Day/Date Polished Case40h

Astron GPS Solar 2026 Limited Edition40h

Water Resistance

Quartz Divers Watch Mk.2 Day/Date Polished Case300m

Astron GPS Solar 2026 Limited Edition100m

MSRP

Quartz Divers Watch Mk.2 Day/Date Polished Case$608

Astron GPS Solar 2026 Limited Edition$2,400

Full specifications

Case

6 specs

Crystal & Dial

3 specs

AR Coating

Inner

Super-clear coating

Dial Color

CWC Quartz Divers Watch Mk.2 Day/Date Polished Case (RN300-P QS120-DD)

Black

Lume

Super-LumiNova

LumiBrite on hands and index(es)

Movement

2 specs

Caliber

Ronda 517

3X62

Jewels

Pricing

1 specs

MSRP

$608

$2,400

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