Hamilton Jazzmaster Auto ChronovsKobold Rattrapante Chronograph

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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.

Hamilton Jazzmaster Auto Chrono at true scale

Jazzmaster Auto Chrono

Kobold Rattrapante Chronograph at true scale

Rattrapante Chronograph

Diameter

42mm

38mm

Thickness

14.8mm

lowest

16mm

Water Resistance

100m

100m

Power Reserve

60h

n/a

MSRP

$1,845

lowest

$4,500

Movement

Hamilton H-31

Valjoux 7750

Case

3 specs
Diameter
42mm
38mm
Thickness
14.83mm
16mm
Lug Width
22mm
20mm

Crystal & Dial

1 specs
Dial Color
Black
n/a

Movement

2 specs
Caliber
Hamilton H-31
Valjoux 7750
Power Reserve
60h
0h

Pricing

1 specs
MSRP
$1,845
$4,500
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Reviews

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

Hamilton Jazzmaster Auto Chrono

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.

From video reviewers

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.

Kobold Rattrapante Chronograph

Owners praise the Kobold Rattrapante Chronograph's high-contrast hands with luminous centers for excellent legibility on the white dial. One owner suggests a blue dial with polished steel subdials would be more interesting. On balance, owners appreciate the Kobold Rattrapante Chronograph for its legibility on the white dial.