Side by side

Mr Jones Watches A perfectly useless afternoon: mechanicalvsSeiko Prospex Sea

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

The bottom line

The 34mm Prospex Sea wears 6mm narrower than the 40mm A perfectly useless afternoon: mechanical — that's a meaningful jump on most wrists.

What people say

Owners + reviewers, side by side

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

Mr Jones Watches A perfectly useless afternoon: mechanical

Mr Jones Watches A perfectly useless afternoon: mechanical is widely praised for its creative and original design, making it a fun conversation starter and a well-made watch for its price point. Owners appreciate the vibrant colors and quality packaging, with one reviewer noting the 40mm case dimensions and elegant lugs. The Swiss STP1-11 movement is reported to have acceptable accuracy. Some owners, however, find the Milanese bracelet too shiny, while the nylon strap may be small in diameter for some wearers. On balance, owners and reviewers rate Mr Jones Watches A perfectly useless afternoon: mechanical highly for its unique design and good value.

Seiko Prospex Sea

Owners widely praise the Seiko Prospex Sea for its excellent value, robust build, and superb lume, with many appreciating its comfortable wearability due to its case shape and lug-to-lug distance. Reviewers consistently highlight its impressive finishing and classic dive watch design, often noting the bright LumiBrite lume. Some owners find the watch to be large, thick, and heavy, while others consider it the perfect size, indicating a split opinion on wearability for smaller wrists. The power reserve from some movements is noted as less than newer variants, and the clasp quality receives mixed feedback. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its exceptional finishing and value proposition in the dive watch market.

Where to get them

Check prices & track

Mr Jones Watches A perfectly useless afternoon: mechanical
Mr Jones Watches A perfectly useless afternoon: mechanical
MSRP $750
Seiko Prospex Sea
Seiko Prospex Sea
MSRP $795
A perfectly useless afternoon: mechanical
Mr Jones WatchesA perfectly useless afternoon: mechanical
MSRP $750
Prospex Sea
SeikoProspex Sea
MSRP $795

At a glance

12 of 29 specs differ
Diameter
A perfectly useless afternoon: mechanical40mm
Prospex Sea34mm
Power Reserve
A perfectly useless afternoon: mechanical40h
Prospex Sea40h
Water Resistance
A perfectly useless afternoon: mechanical
Prospex Sea200m
MSRP
A perfectly useless afternoon: mechanical$750
Prospex Sea$795

Full specifications

Case

6 specs
Category
Casual
Diver
Diameter
40mm
34mm
Thickness
8.7mm
Lug-to-Lug
40.8mm
Lug Width
16mm
Water Resistance
200m

Crystal & Dial

3 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
40mm
Black
Lume
None
LumiBrite on hands and index(es)

Movement

2 specs
Caliber
6N01
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$750
$795

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