CWC RN Automatic Divers Watch Mk.2 with DatevsSeiko 5KX

lug2lug doesn't sell watches. Buy links open the brand's or seller's own site. Some links are affiliate links: lug2lug may earn a commission at no extra cost to you. Disclosures

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 5KX at true scale

5KX

Diameter

41mm

42.5mm

Lug-to-Lug

47mm

46mm

lowest

Thickness

n/a

13.4mm

Water Resistance

300m

highest

100m

Power Reserve

n/a

41h

MSRP

$1,249

$350

lowest

Movement

Sellita SW200-1

Seiko 4R36

Case

5 specs
Diameter
41mm
42.5mm
Thickness
n/a
13.4mm
Lug-to-Lug
47mm
46mm
Lug Width
20mm
22mm
Water Resistance
300m
100m

Crystal & Dial

3 specs
Crystal
Sapphire
Hardlex
Dial Color
CWC RN Automatic Divers Watch Mk.2 with Date, Stainless Steel (RN300-MT AS120-D)
Blue
Lume
Super-LumiNova
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Sellita SW200-1
Seiko 4R36
Power Reserve
0h
41h
Jewels
0
24

Pricing

1 specs
MSRP
$1,249
$350
Keep your wishlist and collection together in the appExplore the app

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 5KX

Owners widely praise the Seiko 5KX for its strong lume and value, with many reporting accuracy within +/-5 to 10 seconds per day, though some experience +/-1 second. The 42.5mm case is noted to wear smaller, and the watch offers a comfortable feel for many. Some owners are split on the bracelet quality, with opinions ranging from "cheaper side" with hollow links to "flimsy-feeling" jubilee. A few quality control issues have been reported, including a failed bezel clickspring and misaligned components. The Seiko 5KX is seen by some as a worthy successor to the original SKX, offering an upgraded movement with hacking and hand-winding capabilities, though others lament the loss of ISO certification and a screw-down crown. Overall, owners rate the Seiko 5KX highly for its excellent lume and value proposition, making it a popular choice for everyday wear.

Similar watches

Matched to the watches above on size, movement, style and price, microbrands first. Open any one to dig in.

DiscussionNot started

Also compared

Comparisons nearby in the catalog: alternatives to the watches above paired against the matchup.