Hamilton Jazzmaster Thinline AutovsSeiko Essentials Automatic

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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 Thinline Auto at true scale

Jazzmaster Thinline Auto

Seiko Essentials Automatic at true scale

Essentials Automatic

Diameter

40mm

41.2mm

Lug-to-Lug

n/a

48.5mm

Thickness

8.4mm

lowest

11.8mm

Water Resistance

50m

100m

highest

Power Reserve

42h

highest

41h

MSRP

$1,145

$315

lowest

Movement

ETA 2892-A2

Seiko 4R35

Case

5 specs
Diameter
40mm
41.2mm
Thickness
8.45mm
11.8mm
Lug-to-Lug
n/a
48.5mm
Material
Stainless Steel
n/a
Water Resistance
50m
100m

Crystal & Dial

2 specs
Crystal
Sapphire
Hardlex
Dial Color
Beige
n/a

Movement

3 specs
Caliber
ETA 2892-A2
Seiko 4R35
Power Reserve
42h
41h
Jewels
0
23

Pricing

1 specs
MSRP
$1,145
$315
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Reviews

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

Hamilton Jazzmaster Thinline Auto

The Hamilton Jazzmaster Thinline Auto is widely praised for its gorgeous, stunning, and captivating dials, particularly the champagne and burgundy variants, and its thin, comfortable, vintage-inspired design that fits well under shirt cuffs. Owners appreciate its clean, simple aesthetic, often noting the beauty of its applied indices and dauphine hands, and the slim profile afforded by its movement. Some users find the absence of a second hand liberating for quick setting and avoiding accuracy checks. However, opinions are mixed on its thinness, with some finding it too thin for their preference. The ETA 2892-A2 movement's rotor noise is noted by several owners as audible due to the thin case, and the winding feel is described by one owner as unrefined. The small crown is also flagged as difficult to manipulate, and the OEM strap is disliked by one owner. One source mentions the polished case may show light swirlies.

From video reviewers

The slim case profile and affordable price point are consistently praised. Reviewers noted the absence of a second hand.

Seiko Essentials Automatic

Owners widely praise the Seiko Essentials Automatic for its exceptional value and reliable performance. The green sunray dial is a particular highlight for many, with one owner appreciating its beauty and the watch's overall design even after a year of ownership. Some find the 41.2mm case wears smaller than expected, making it comfortable for active wear due to its lightweight design. However, opinions on the dial color are split, with one user preferring a black dial over the greenish hue. A potential issue noted is the orange stripe on a stopwatch button, which may expand and detach in heat. On balance, owners rate the Seiko Essentials Automatic highly for its value and reliable, attractive design.

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