Seiko AlpinistvsTimefactors PRS-57

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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.

Seiko Alpinist at true scale

Alpinist

Timefactors PRS-57 at true scale

PRS-57

Diameter

39.5mm

40mm

Lug-to-Lug

46.4mm

46mm

lowest

Thickness

13.2mm

lowest

15mm

Water Resistance

200m

highest

100m

Power Reserve

70h

highest

62h

MSRP

$750

lowest

$1,268

Movement

Seiko 6R35

Sellita SW510

Case

4 specs
Diameter
39.5mm
40mm
Thickness
13.2mm
15mm
Lug-to-Lug
46.4mm
46mm
Water Resistance
200m
100m

Crystal & Dial

3 specs
AR Coating
Anti-reflective coating on inner surface
n/a
Dial Color
n/a
n/a
Lume
LumiBrite on hands and index(es)
SuperLuminova X1-C3

Movement

3 specs
Caliber
Seiko 6R35
Sellita SW510
Power Reserve
70h
62h
Jewels
24
0

Pricing

1 specs
MSRP
$750
$1,268
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Reviews

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

Seiko Alpinist

Owners widely praise the Seiko Alpinist for its value, durability, and unique style, with many appreciating its accuracy and versatile design suitable for vacations. Some owners find the 39.5mm case size perfect for average wrists, while others with smaller wrists consider it large and thick. Opinions are split on the crystal type, with some preferring a domed sapphire and others accepting the Hardlex. The Seiko Alpinist is generally considered a well-built and attractive watch for the money.

Timefactors PRS-57

Owners widely praise the Timefactors PRS-57's 40mm sizing and sapphire crystal, with one owner finding its lume decent when fully charged, glowing dimly for at least twenty minutes. Some owners find the Smiths logo resembles breasts, and one commenter felt the watch looked too simple. The consensus is that owners rate the Timefactors PRS-57 highly for its comfortable wearability and classic design at the price.