LIV Watches GX-ACvsSeiko Prospex Speedtimer Mechanical 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.

LIV Watches GX-AC at true scale

GX-AC

Seiko Prospex Speedtimer Mechanical Chronograph at true scale

Prospex Speedtimer Mechanical Chronograph

Diameter

46mm

42mm

Lug-to-Lug

n/a

49.5mm

Thickness

15.5mm

14.6mm

lowest

Water Resistance

100m

100m

Power Reserve

42h

45h

highest

MSRP

$1,670

lowest

$2,500

Movement

Valjoux 7750

Seiko 8R48

Case

4 specs
Diameter
46mm
42mm
Thickness
15.5mm
14.6mm
Lug-to-Lug
n/a
49.5mm
Lug Width
23mm
20mm

Crystal & Dial

4 specs
Crystal Shape
n/a
Curved
AR Coating
n/a
Anti-reflective coating on inner surface
Dial Color
n/a
n/a
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Valjoux 7750
Seiko 8R48
Power Reserve
42h
45h
Jewels
0
34

Pricing

1 specs
MSRP
$1,670
$2,500
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Reviews

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

LIV Watches GX-AC

Owners widely report the LIV Watches GX-AC is a super solid, well-built timepiece that feels worth more than its price, with one owner calling it their "most sexy watch" and "go to watch" due to its toughness and aesthetics. Reviewers describe the GX-AC Signature Orange as a bold, tank-like chronograph with head-turning aesthetics, noting its 46mm case is surprisingly wearable due to curvature and black finish. On balance, owners and reviewers rate the LIV Watches GX-AC highly for its impressive build quality and striking design at its price point.

Seiko Prospex Speedtimer Mechanical Chronograph

The Seiko Prospex SPEEDTIMER Mechanical Chronograph is praised for its handsome, heritage-inspired design and clean, balanced dial layout, enhanced by an external tachymeter bezel. Reviewers note the adequate caliber 8R48 movement, which features a vertical clutch and column wheel with MEMS technology for durability and precision. The refined bracelet offers improved comfort, and the overall package is considered good value for a well-designed chronograph with an in-house movement. Points to consider include the 4:30 date window and a thickness of 14.6mm, while the 45-hour power reserve is an area for potential improvement. On balance, reviewers rate the Seiko Prospex SPEEDTIMER Mechanical Chronograph highly for its attractive design and solid chronograph functionality at its price point.

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