Side by side

Seiko Prospex SPEEDTIMER MechanicalvsSeiko DressKX

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

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 Mechanical

The Seiko Prospex SPEEDTIMER Mechanical is praised for its visually appealing design and comfortable wearability, with owners frequently using its chronograph function for daily tasks. Reviewers note its clean dial layout and LumiBrite treated hands and markers, and one source highlights the 72-hour power reserve of the 6R55 movement. However, some owners criticize its chronograph functionality and the 24-hour subdial. On balance, owners and reviewers rate the Seiko Prospex SPEEDTIMER Mechanical highly for its daily usability and refined aesthetics.

Seiko DressKX

The Seiko 5 Sports SKX series is widely praised as a gateway mechanical watch offering exceptional value and iconic status, with owners appreciating its ruggedness, tool-like authenticity, and moddability. Many owners report the 4R36/NH36 movement achieves accuracy of +/-5 to 10 seconds per day, far exceeding its stated specifications, and the stock Jubilee bracelet is noted as surprisingly comfortable. Some owners find the Seiko 5 Sports SKX series bulky and less aesthetically pleasing than newer models, with others noting its specifications lag behind contemporary watches. The Seiko 5 Sports SKX series is considered a decent watch, especially when found under £200, but it's not the serious tool watch the original SKX was, lacking a screw-down crown, bezel pip, and ISO rating. Overall, owners rate the Seiko 5 Sports SKX series highly for its iconic dive watch lineage and excellent value at the price point.

From video reviewers

The clean dial and versatile dressy look are praised. The overall thickness and handset are points of contention.

At a glance

11 of 29 specs differ
Diameter
Prospex SPEEDTIMER Mechanical39.5mm
DressKX40mm
Power Reserve
Prospex SPEEDTIMER Mechanical72h
DressKX41h
Water Resistance
Prospex SPEEDTIMER Mechanical200m
DressKX100m
MSRP
Prospex SPEEDTIMER Mechanical$995
DressKX$315

Full specifications

Case

5 specs
Category
Chronograph
Sport
Diameter
39.5mm
40mm
Thickness
12mm
11.5mm
Lug-to-Lug
44.5mm
44.6mm
Water Resistance
200m
100m

Crystal & Dial

3 specs
Crystal
Sapphire
Hardlex
Crystal Shape
Curved
AR Coating
Anti-reflective coating on inner surface

Movement

2 specs
Caliber
6R55
4R36
Power Reserve
72h
41h

Pricing

1 specs
MSRP
$995
$315
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