Which is cheaper, the CWC Automatic Divers Watch Mk.2 Black with Date or the Seiko Prospex Sea 1965 Heritage Diver's Watch?

At MSRP the CWC Automatic Divers Watch Mk.2 Black with Date is the cheaper of the two at $1,249, against $1,300 for the Seiko Prospex Sea 1965 Heritage Diver's Watch — a $51 gap before any retailer discounting.

Which is bigger, the CWC Automatic Divers Watch Mk.2 Black with Date or the Seiko Prospex Sea 1965 Heritage Diver's Watch?

The CWC Automatic Divers Watch Mk.2 Black with Date wears larger at 41mm versus 40mm for the Seiko Prospex Sea 1965 Heritage Diver's Watch — a 1mm difference across the dial.

Which has a longer power reserve, the CWC Automatic Divers Watch Mk.2 Black with Date or the Seiko Prospex Sea 1965 Heritage Diver's Watch?

The Seiko Prospex Sea 1965 Heritage Diver's Watch carries a 72-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 1965 Heritage Diver's Watch?

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 1965 Heritage Diver's Watch uses the 6R55.

Side by side

CWC Automatic Divers Watch Mk.2 Black with DatevsSeiko Prospex Sea 1965 Heritage Diver's Watch

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 1965 Heritage Diver's Watch

spb451j1

MSRP $1,300

At a glance

11 of 29 specs differ

Diameter

Automatic Divers Watch Mk.2 Black with Date41mm

Prospex Sea 1965 Heritage Diver's Watch40mm

Power Reserve

Automatic Divers Watch Mk.2 Black with Date40h

Prospex Sea 1965 Heritage Diver's Watch72h

Water Resistance

Automatic Divers Watch Mk.2 Black with Date300m

Prospex Sea 1965 Heritage Diver's Watch300m

MSRP

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

Prospex Sea 1965 Heritage Diver's Watch$1,300

Full specifications

Case

3 specs

Diameter

41mm

40mm

Thickness

12mm

13mm

Lug-to-Lug

47mm

46.4mm

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

6R55

Power Reserve

40h

72h

Jewels

Pricing

1 specs

MSRP

$1,249

$1,300

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