Which is cheaper, the CWC Automatic Divers Watch Mk.2 Black with Date or the Seiko Prospex Sea?

At MSRP the Seiko Prospex Sea is the cheaper of the two at $900, against $1,249 for the CWC Automatic Divers Watch Mk.2 Black with Date — a $349 gap before any retailer discounting.

Which has better water resistance, the CWC Automatic Divers Watch Mk.2 Black with Date or the Seiko Prospex Sea?

The CWC Automatic Divers Watch Mk.2 Black with Date is rated to 300m versus 200m for the Seiko Prospex Sea.

Which has a longer power reserve, the CWC Automatic Divers Watch Mk.2 Black with Date or the Seiko Prospex Sea?

The Seiko Prospex Sea carries a 70-hour power reserve against 40 hours on the CWC Automatic Divers Watch Mk.2 Black with Date.

What movement does the CWC Automatic Divers Watch Mk.2 Black with Date run compared to the Seiko Prospex Sea?

Both watches run automatic movements — the CWC Automatic Divers Watch Mk.2 Black with Date uses the Sellita SW200-1 and the Seiko Prospex Sea uses the 6R35.

Side by side

CWC Automatic Divers Watch Mk.2 Black with DatevsSeiko Prospex Sea

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

CWC Automatic Divers Watch Mk.2 Black with Date

cwc-royal-navy-black-diver-automatic-mk-2-with-date

MSRP $1,249

Seiko Prospex Sea

spb317j1

MSRP $900

At a glance

11 of 29 specs differ

Diameter

Automatic Divers Watch Mk.2 Black with Date41mm

Prospex Sea41mm

Power Reserve

Automatic Divers Watch Mk.2 Black with Date40h

Prospex Sea70h

Water Resistance

Automatic Divers Watch Mk.2 Black with Date300m

Prospex Sea200m

MSRP

Automatic Divers Watch Mk.2 Black with Date$1,249

Prospex Sea$900

Full specifications

Case

3 specs

Thickness

12mm

12.3mm

Lug-to-Lug

47mm

46.9mm

Water Resistance

300m

200m

Crystal & Dial

4 specs

Crystal Shape

Flat

Curved

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

CWC Automatic Divers Watch Mk.2 Black with Date (SF300 AS120-D)

Black

Lume

Super-LumiNova

LumiBrite on hands, index(es) and bezel

Movement

3 specs

Caliber

Sellita SW200-1

6R35

Power Reserve

40h

70h

Jewels

Pricing

1 specs

MSRP

$1,249

$900

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