Side by side

CWC 6BB-WRvsSeiko Astron

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

6BB-WR
CWC6BB-WR
MSRP $1,875
Astron
SeikoAstron
MSRP $3,100

At a glance

13 of 29 specs differ
Diameter
6BB-WR42mm
Astron44.1mm
Power Reserve
6BB-WR40h
Astron40h
Water Resistance
6BB-WR100m
Astron100m
MSRP
6BB-WR$1,875
Astron$3,100

Full specifications

Case

5 specs
Diameter
42mm
44.1mm
Thickness
14.9mm
14.4mm
Lug-to-Lug
49mm
50mm
Lug Width
20mm
14mm
Material
Stainless Steel
Titanium

Crystal & Dial

4 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Super-clear coating
Dial Color
CWC 6BB-WR
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Sellita SW510
5X83
Type
Automatic
Quartz
Jewels
25
14

Pricing

1 specs
MSRP
$1,875
$3,100

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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 Astron

Owners widely praise the Seiko Astron for its spectacular technology, self-sufficiency, and grab-and-go convenience, with one owner calling it the best watch they have ever had. Reviewers and owners highlight the detailed and well-managed dials, often with "Grand Seiko-esque" precision, and appreciate the comfortable, lightweight titanium construction. The solar-powered quartz movement with GPS time sync is a significant draw, offering accurate timekeeping. However, the price point of around €2250-€2400 is frequently cited as high for a quartz watch. Some owners note manual DST implementation, dependence on outdoor conditions or radio tower proximity for GPS sync, and sparse lume. One owner experienced the minute hand sitting slightly off and found the recessed buttons difficult to operate. Accuracy figures vary, with some reporting +/- 15 seconds per month without GPS, while others note autonomous quartz movement accuracy of up to 1/2 second per day.

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