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
14.8mm
lowest
Water Resistance
100m
100m
Power Reserve
n/a
60h
MSRP
$2,858
$1,845
lowest
Movement
Sellita SW510
Hamilton H-31
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 (Cabot Watch Company) 6BB-WR for its faithful pilot chronograph design and modern durability, with reviewers noting its crisp and confidence-inspiring chronograph operation. Some find the 14.9mm thickness and 80g weight make the 42mm case wear large, though the 49mm lug-to-lug aids wearability, and the cam-lever chronograph action is considered less satisfying than a column wheel, with fixed bars limiting strap options. Overall, owners and reviewers rate the CWC (Cabot Watch Company) 6BB-WR highly for its practical, affordable, and serviceable tool watch nature.
Owners widely praise the Hamilton Jazzmaster Auto Chrono for its excellent value, blending classy, sporty, and elegant design with a classic 42mm case featuring a mix of polished and brushed finishes. Reviewers and owners consistently note its great timekeeping, with figures ranging from +0.5 to +3 seconds per day, and appreciate the fit and finish that exceeds its price point. The dial is often highlighted for its detail, with applied markers, and some owners specifically praise the reverse panda configuration. However, the lume is frequently described as underwhelming or fading quickly, and the original strap or steel bracelet is sometimes found stiff or uncomfortable, leading some to replace it. One owner noted the internal bezel's functionality requires unscrewing a crown and lacks lume. On balance, owners rate the Hamilton Jazzmaster Auto Chrono highly for its exceptional value and well-executed design, despite minor criticisms regarding lume and strap comfort.
The watch features a quality automatic chronograph movement. The date setting mechanism, requiring a specialized pusher tool, is a notable drawback. Reviewers disagreed on whether the watch competes effectively with luxury alternatives at its price point.
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