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

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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 Automatic Divers Watch Mk.2 Black with Date at true scale

Automatic Divers Watch Mk.2 Black 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 Automatic Divers Watch Mk.2 Black with Date (SF300 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
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Reviews

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

CWC Automatic Divers Watch Mk.2 Black with Date

Owners widely praise the CWC Automatic Divers Watch Mk.2 Black with Date for its brushed chapter ring, precise 120-click bezel, scratch-resistant sapphire crystal, excellent case finishing, and improved lume. Reviewers highlight its classic, highly legible dial design and durable black PVD coating. Some users note a price increase over previous models, and the day/date function is considered by some to be a "vexing" addition. The watch is recognized for its historical significance as a military instrument. Overall, owners and reviewers highly regard the CWC Automatic Divers Watch Mk.2 Black with Date for its robust build, legibility, and military heritage.

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.

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