Side by side

Seiko Prospex SPEEDTIMERvsTimefactors PRS-10

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Prospex SPEEDTIMER
SeikoProspex SPEEDTIMER
MSRP $725
PRS-10
TimefactorsPRS-10
MSRP $302
What people say

Owners + reviewers, side by side

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

Seiko Prospex SPEEDTIMER

Owners widely praise the Seiko Prospex SPEEDTIMER's gorgeous, unique red dial and vintage-inspired design, finding it a sturdy and reliable everyday watch. Some owners, however, question the value proposition at around $700 for a solar quartz model, citing its 13-15mm thickness and the 24-hour subdial as drawbacks. Accuracy figures vary, with one owner reporting +1/+2 seconds per day, while another notes the V192 solar movement offers a six-month power reserve. Overall, owners and reviewers find the Seiko Prospex SPEEDTIMER a capable and versatile chronograph, with its striking dial and everyday wearability being the most frequently cited strengths.

From video reviewers

The Seiko Prospex SPEEDTIMER's solar movement provides reliable power without battery replacements and accurate timekeeping, with a claimed accuracy of ±15 seconds per month. A notable trade-off is the watch's slightly thicker profile and somewhat lacking lume brightness. Reviewers disagree on whether the bezel action is smooth and clicky, with one reviewer praising it and the other not mentioning it.

Timefactors PRS-10

Owners praise the Timefactors PRS-10 as a rugged, affordable military field watch, valuing its robust build and 100m water resistance for daily wear, with its 39.1mm bead-blasted stainless steel case considered a perfect size by some. One user dislikes the large dial numbers, while others favor the acrylic crystal for its ease of polishing and the watch's overall sturdiness over more delicate alternatives. On balance, the consensus is that the Timefactors PRS-10 is highly regarded for its durable construction and practical specifications at a competitive price point.

At a glance

10 of 29 specs differ
Diameter
Prospex SPEEDTIMER39mm
PRS-1039.1mm
Power Reserve
Prospex SPEEDTIMER40h
PRS-10
Water Resistance
Prospex SPEEDTIMER100m
PRS-10100m
MSRP
Prospex SPEEDTIMER$725
PRS-10$302

Full specifications

Case

4 specs
Category
Chronograph
Diameter
39mm
39.1mm
Thickness
13.3mm
11.2mm
Lug-to-Lug
45.5mm
42mm

Crystal & Dial

3 specs
Crystal Shape
Curved
Flat
AR Coating
Anti-reflective coating on inner surface
Inner
Lume
LumiBrite on hands and index(es)
None

Movement

2 specs
Caliber
V192
Ronda 715Li
Power Reserve
40h

Pricing

1 specs
MSRP
$725
$302
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