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

The Seiko Prospex Sea wears larger at 41.7mm versus 41mm for the CWC Quartz Divers Watch Mk.2 Day/Date Polished Case — a 0.7mm difference across the dial.

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

The CWC Quartz Divers Watch Mk.2 Day/Date Polished Case is rated to 300m versus 200m for the Seiko Prospex Sea.

Which has a longer power reserve, the CWC Quartz Divers Watch Mk.2 Day/Date Polished Case or the Seiko Prospex Sea?

The Seiko Prospex Sea carries a 41-hour power reserve against 40 hours on the CWC Quartz Divers Watch Mk.2 Day/Date Polished Case.

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

The CWC Quartz Divers Watch Mk.2 Day/Date Polished Case runs a quartz caliber (Ronda 517), while the Seiko Prospex Sea runs a automatic (4R35).

Side by side

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

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

At MSRP the Seiko Prospex Sea is the cheaper of the two at $595, against $608 for the CWC Quartz Divers Watch Mk.2 Day/Date Polished Case — a $13 gap before any retailer discounting.

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 Prospex Sea

srpl11

MSRP $595

At a glance

12 of 29 specs differ

Diameter

Quartz Divers Watch Mk.2 Day/Date Polished Case41mm

Prospex Sea41.7mm

Power Reserve

Quartz Divers Watch Mk.2 Day/Date Polished Case40h

Prospex Sea41h

Water Resistance

Quartz Divers Watch Mk.2 Day/Date Polished Case300m

Prospex Sea200m

MSRP

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

Prospex Sea$595

Full specifications

Case

4 specs

Diameter

41mm

41.7mm

Thickness

12mm

12.3mm

Lug-to-Lug

47mm

49.5mm

Water Resistance

300m

200m

Crystal & Dial

3 specs

Crystal

Sapphire

Hardlex

Dial Color

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

Black

Lume

Super-LumiNova

LumiBrite on hands, index(es) and bezel

Movement

4 specs

Caliber

Ronda 517

4R35

Type

Quartz

Automatic

Power Reserve

40h

41h

Jewels

Pricing

1 specs

MSRP

$608

$595

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