Hamilton American Classic Intra-Matic Chronograph HvsSeiko Chronograph SSB479

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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 American Classic Intra-Matic Chronograph H at true scale

American Classic Intra-Matic Chronograph H

Seiko Chronograph SSB479 at true scale

Chronograph SSB479

Diameter

40mm

38.7mm

Lug-to-Lug

49mm

45.1mm

lowest

Thickness

14.3mm

12.6mm

lowest

Water Resistance

100m

highest

50m

Power Reserve

60h

n/a

MSRP

$2,495

$450

lowest

Movement

Hamilton H-51

Seiko 8T63

Case

5 specs
Diameter
40mm
38.7mm
Thickness
14.35mm
12.6mm
Lug-to-Lug
49mm
45.1mm
Water Resistance
100m
50m
Caseback
n/a
Screw case back

Crystal & Dial

3 specs
Crystal
Sapphire
Hardlex
Crystal Shape
n/a
Box
Dial Color
White
n/a

Movement

3 specs
Caliber
Hamilton H-51
Seiko 8T63
Type
Manual
Quartz
Power Reserve
60h
0h

Pricing

1 specs
MSRP
$2,495
$450
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Reviews

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

Hamilton American Classic Intra-Matic Chronograph H

Owners and reviewers widely praise the Hamilton American Classic Intra-Matic Chronograph H for its attractive vintage-inspired design, clean dial, and satisfying manual-wind H-51 movement. The 40mm case size is frequently highlighted as a positive, contributing to comfortable wearability. Some owners note the watch consistently receives compliments and appreciate its historical significance and value. The watch's timekeeping is generally good, with one reviewer noting +3 seconds per day and a 60-hour power reserve. However, the 14.35mm thickness is noted by several sources as being on the thicker side for a hand-wound chronograph, though it is still considered to wear well. One owner found the date setting unusual and the rotor audible. There is also a mention of some owners wishing for a three-subdial version and criticism of the OEM strap being utilitarian.

Seiko Chronograph SSB479

Owners widely praise the Seiko Chronograph SSB479 for its appealing retro aesthetic, excellent dial design, and desirable proportions, with many highlighting its "Goldilocks-sized" 38.7mm case as a favorite feature. Reviewers and owners alike appreciate its high-end look and vintage charm at an accessible price point, with one owner noting the mecha-quartz movement is satisfactory given the cost. Some owners find the watch beautiful and a "strap monster," with attention to detail justifying its price, though one considered it steep compared to a Tissot quartz chronograph. On balance, owners and reviewers rate the Seiko Chronograph SSB479 highly for its vintage style and well-proportioned case.

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