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

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

CWC RN Automatic Divers Watch Mk.2 with Date at true scale

RN Automatic Divers Watch Mk.2 with Date

Seiko Prospex Sea at true scale

Prospex Sea

Diameter

41mm

43.8mm

Lug-to-Lug

47mm

lowest

48.7mm

Thickness

n/a

12.8mm

Water Resistance

300m

highest

200m

Power Reserve

n/a

41h

MSRP

$1,249

$625

lowest

Movement

Sellita SW200-1

Seiko 4R35

Case

5 specs
Diameter
41mm
43.8mm
Thickness
n/a
12.8mm
Lug-to-Lug
47mm
48.7mm
Lug Width
20mm
22mm
Water Resistance
300m
200m

Crystal & Dial

3 specs
AR Coating
n/a
Anti-reflective coating on inner surface
Dial Color
CWC RN Automatic Divers Watch Mk.2 with Date, Stainless Steel (RN300-MT AS120-D)
n/a
Lume
Super-LumiNova
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Sellita SW200-1
Seiko 4R35
Power Reserve
0h
41h
Jewels
0
23

Pricing

1 specs
MSRP
$1,249
$625
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

CWC RN Automatic Divers Watch Mk.2 with Date

Owners widely praise the CWC RN Automatic Divers Watch Mk.2 with Date for its authentic vintage look and legible dial, with reviewers noting its faithful homage to the 1980 original and durable 41mm case. The watch features an upgraded sapphire crystal and improved lume, and its 120-click bezel is described as perfectly clicking. Some find the vintage-tinted dial and hands' gold tone slightly too pronounced and the applied paint too glossy, while the day/date function draws mixed opinions. On balance, owners and reviewers rate the CWC RN Automatic Divers Watch Mk.2 with Date highly for its authentic vintage aesthetic and robust build.

Seiko Prospex Sea

The Seiko Prospex Sea is widely praised for its excellent value as a sport watch, with owners highlighting its comfortable wearability and generous lume. Reviewers note its solid build quality and attractive design, with some specifically mentioning the matte black dial as a strong point. One owner reports accuracy around +1 to +2 seconds per day. The 43.8mm case size is considered substantial by some, and one owner found the watch heavy and thick, regretting not choosing a different variant. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its blend of classic design and modern utility at an accessible price point.

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