Which is cheaper, the CWC Quartz Divers Watch Mk.2 Polished Case or the Seiko Prospex Sea?

At MSRP the CWC Quartz Divers Watch Mk.2 Polished Case is the cheaper of the two at $583, against $595 for the Seiko Prospex Sea — a $13 gap before any retailer discounting.

Which is bigger, the CWC Quartz Divers Watch Mk.2 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 Polished Case — a 0.7mm difference across the dial.

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

The CWC Quartz Divers Watch Mk.2 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 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 Polished Case.

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

The CWC Quartz Divers Watch Mk.2 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 Polished CasevsSeiko Prospex Sea

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

CWC Quartz Divers Watch Mk.2 Polished Case

cwc-royal-navy-divers-quartz-watch-mk-2

MSRP $583

Seiko Prospex Sea

srpl11

MSRP $595

At a glance

12 of 29 specs differ

Diameter

Quartz Divers Watch Mk.2 Polished Case41mm

Prospex Sea41.7mm

Power Reserve

Quartz Divers Watch Mk.2 Polished Case40h

Prospex Sea41h

Water Resistance

Quartz Divers Watch Mk.2 Polished Case300m

Prospex Sea200m

MSRP

Quartz Divers Watch Mk.2 Polished Case$583

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 Polished Case (RN300-P QS120)

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

$583

$595

Follow this matchup

Get a note when CWC Quartz Divers Watch Mk.2 Polished Case vs Seiko Prospex Sea gets more votes, a community discussion, or a price drop. No account needed.

Keep exploring