Side by side

CWC 6BB-WRvsSeiko 5 Sports SKX series

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

6BB-WR
CWC6BB-WR
MSRP $1,875
5 Sports SKX series
Seiko5 Sports SKX series
MSRP $495

At a glance

12 of 29 specs differ
Diameter
6BB-WR42mm
5 Sports SKX series42.5mm
Power Reserve
6BB-WR40h
5 Sports SKX series41h
Water Resistance
6BB-WR100m
5 Sports SKX series100m
MSRP
6BB-WR$1,875
5 Sports SKX series$495

Full specifications

Case

5 specs
Category
Chronograph
GMT
Diameter
42mm
42.5mm
Thickness
14.9mm
13.6mm
Lug-to-Lug
49mm
46mm
Lug Width
20mm
22mm

Crystal & Dial

3 specs
Crystal
Sapphire
Hardlex
Dial Color
CWC 6BB-WR
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Sellita SW510
4R34
Power Reserve
40h
41h
Jewels
25
24

Pricing

1 specs
MSRP
$1,875
$495

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What people say

Owners + reviewers, side by side

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

CWC 6BB-WR

The CWC 6BB-WR is widely praised for its legible matte black dial, strong lume, and crisp chronograph operation. Owners and reviewers note its military heritage and rugged, confidence-inspiring build with a screw-down crown and pushers. The Sellita SW510 BH b automatic movement kept time within COSC range in testing. However, its 14.9mm thickness and 80g weight make it wear large, and the cam-lever movement lacks the satisfying click of a column wheel. Fixed bars limit strap options. On balance, owners and reviewers rate the CWC 6BB-WR highly for its legible dial and robust pilot chronograph design at its price point.

Seiko 5 Sports SKX series

The Seiko 5 Sports SKX series is widely praised as an excellent gateway watch, offering great value with a solid build and powerful lume. Owners widely report that the NH36 movement's accuracy is a "luck of the draw," with official specs allowing up to +/-40 seconds per day, though many experience +/-5 to 10 seconds. Some owners note the lack of a screw-down crown and 100m water resistance, while others highlight its ISO 6425 compliance, 200m water resistance, and screw-down crown as superior tool watch features. Some owners find the original SKX models heavier and bulkier than newer lines, while others praise its iconic, tough, and rugged dive watch design and proven durability. On balance, owners and reviewers rate the Seiko 5 Sports SKX series highly for its iconic, durable dive watch design and strong value proposition.

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