Which is cheaper, the CWC RN Automatic Divers Watch Mk.2 or the Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition?

At MSRP the CWC RN Automatic Divers Watch Mk.2 is the cheaper of the two at $1,249, against $1,400 for the Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition — a $151 gap before any retailer discounting.

Which is bigger, the CWC RN Automatic Divers Watch Mk.2 or the Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition?

The CWC RN Automatic Divers Watch Mk.2 wears larger at 41mm versus 40mm for the Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition — a 1mm difference across the dial.

Which has a longer power reserve, the CWC RN Automatic Divers Watch Mk.2 or the Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition?

The Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition carries a 72-hour power reserve against 40 hours on the CWC RN Automatic Divers Watch Mk.2.

What movement does the CWC RN Automatic Divers Watch Mk.2 run compared to the Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition?

Both watches run automatic movements — the CWC RN Automatic Divers Watch Mk.2 uses the Sellita SW200-1 and the Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition uses the 6R55.

Side by side

CWC RN Automatic Divers Watch Mk.2vsSeiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition

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

CWC RN Automatic Divers Watch Mk.2

cwc-royal-navy-diver-automatic-mk2

MSRP $1,249

Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition

spb545j1

MSRP $1,400

At a glance

11 of 29 specs differ

Diameter

RN Automatic Divers Watch Mk.241mm

Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition40mm

Power Reserve

RN Automatic Divers Watch Mk.240h

Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition72h

Water Resistance

RN Automatic Divers Watch Mk.2300m

Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition300m

MSRP

RN Automatic Divers Watch Mk.2$1,249

Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition$1,400

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 RN Automatic Divers Watch Mk.2, Stainless Steel (RN300-MT AS120)

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

$1,400

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