LIV Watches P-51vsSeiko 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 P-51 at true scale

P-51

Seiko Prospex Speedtimer Mechanical Chronograph at true scale

Prospex Speedtimer Mechanical Chronograph

Diameter

46mm

42mm

Lug-to-Lug

52.4mm

49.5mm

lowest

Thickness

15.5mm

14.6mm

lowest

Water Resistance

300m

highest

100m

Power Reserve

12h

45h

highest

MSRP

$2,200

lowest

$2,500

Movement

Valjoux 7750

Seiko 8R48

Case

7 specs
Category
Pilot
Chronograph
Diameter
46mm
42mm
Thickness
15.5mm
14.6mm
Lug-to-Lug
52.4mm
49.5mm
Lug Width
23mm
20mm
Material
Titanium
Stainless Steel
Water Resistance
300m
100m

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
12h
45h
Jewels
0
34

Pricing

1 specs
MSRP
$2,200
$2,500
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Reviews

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

LIV Watches P-51

Owners widely praise the LIV Watches P-51 for its excellent build quality, attention to detail, and striking pilot design, with many noting that images fail to capture its full appeal. Reviewers highlight its legibility, aided by BGW9 lume and an anti-reflective crystal, and its robust construction, including titanium and matte ceramic options. One owner notes the Valjoux 7750 movement is regulated to within +/- 4 seconds per day. However, one owner expresses concern about lume performance, referencing past discussions about LIV watches, and prices range from $550 to $1931 AUD depending on the specific model and variant. Overall, owners and reviewers rate the LIV Watches P-51 highly for its distinctive design and solid construction 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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