CWC 6BB-WRvsHamilton Jazzmaster Auto Chrono

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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.

6BB-WR

Jazzmaster Auto Chrono
Diameter
42mm
42mm
Lug-to-Lug
49mm
n/a
Thickness
14.9mm
lowest
15.2mm
Water Resistance
100m
100m
Power Reserve
n/a
60h
MSRP
$1,875
lowest
$2,095
Movement
Sellita SW510
Hamilton H-21
Case
3 specsCrystal & Dial
1 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the CWC 6BB-WR for its legible matte black dial, strong lume, and crisp chronograph operation, with one user stating they would choose it over modern Rolex watches. Reviewers note the Sellita SW510 BH b automatic movement kept time within COSC range in testing, and the screw-down crown and pushers inspire confidence. Some owners find the 14.9mm thickness and 80g weight make it wear large, and the cam-lever movement lacks the satisfying feel of a column wheel, while fixed bars limit strap choices. Overall, owners and reviewers rate the CWC 6BB-WR highly for its robust build and pilot chronograph functionality at its price point.
Owners widely praise the Hamilton Jazzmaster Auto Chrono for its excellent value and substantial, dressy appearance, with many noting its superior quality and finish compared to other brands. The H-21 movement offers a 60-hour power reserve, though its thickness makes the watch unsuitable for those seeking a slim profile. Some owners express a preference for a 3-6-9 subdial layout or a smaller case size. On balance, owners rate the Hamilton Jazzmaster Auto Chrono highly for its strong value proposition and appealing aesthetic.
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