Side by side

Citizen Promaster DivervsSeiko Prospex SPEEDTIMER

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

Promaster Diver
CitizenPromaster Diver
MSRP $319
Prospex SPEEDTIMER
SeikoProspex SPEEDTIMER
MSRP $725
What people say

Owners + reviewers, side by side

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

Citizen Promaster Diver

Owners widely praise the Citizen Promaster Diver for its lightweight titanium construction, comfortable wear, and excellent specifications for its price, with one owner noting handsome dial construction from recycled materials and accuracy of +1 second in 7 days. Some owners find its brushed finish unremarkable, its bezel action mediocre, and its rotor loud, while one example showed a slightly misaligned bezel and chapter ring. On balance, owners rate the Citizen Promaster Diver highly for its lightweight titanium build and strong value proposition.

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.

At a glance

13 of 29 specs differ
Diameter
Promaster Diver36.5mm
Prospex SPEEDTIMER39mm
Power Reserve
Promaster Diver40h
Prospex SPEEDTIMER40h
Water Resistance
Promaster Diver200m
Prospex SPEEDTIMER100m
MSRP
Promaster Diver$319
Prospex SPEEDTIMER$725

Full specifications

Case

5 specs
Category
Diver
Chronograph
Diameter
36.5mm
39mm
Thickness
12mm
13.3mm
Lug-to-Lug
46mm
45.5mm
Water Resistance
200m
100m

Crystal & Dial

5 specs
Crystal
Mineral
Sapphire
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
White
Black
Lume
None
LumiBrite on hands and index(es)

Movement

2 specs
Caliber
E168
V192
Type
Solar
Quartz

Pricing

1 specs
MSRP
$319
$725
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