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

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

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

Both watches run quartz movements — the CWC Quartz Divers Watch Mk.2 Day/Date Polished Case uses the Ronda 517 and the Seiko Astron uses the 5X83.

Side by side

CWC Quartz Divers Watch Mk.2 Day/Date Polished CasevsSeiko Astron

Q: Which is cheaper, the CWC Quartz Divers Watch Mk.2 Day/Date Polished Case or the Seiko Astron?

At MSRP the CWC Quartz Divers Watch Mk.2 Day/Date Polished Case is the cheaper of the two at $608, against $2,700 for the Seiko Astron — a $2,093 gap before any retailer discounting.

Q: Which is bigger, the CWC Quartz Divers Watch Mk.2 Day/Date Polished Case or the Seiko Astron?

The Seiko Astron wears larger at 43.3mm versus 41mm for the CWC Quartz Divers Watch Mk.2 Day/Date Polished Case — a 2.3mm difference across the dial.

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

ssh151j1

MSRP $2,700

At a glance

14 of 29 specs differ

Diameter

Quartz Divers Watch Mk.2 Day/Date Polished Case41mm

Astron43.3mm

Power Reserve

Quartz Divers Watch Mk.2 Day/Date Polished Case40h

Astron40h

Water Resistance

Quartz Divers Watch Mk.2 Day/Date Polished Case300m

Astron100m

MSRP

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

Astron$2,700

Full specifications

Case

7 specs

Crystal & Dial

4 specs

Crystal Shape

Flat

Curved

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

5X83

Jewels

Pricing

1 specs

MSRP

$608

$2,700

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