Side by side

Seiko Prospex SeavsTuseno Shellback

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 Sea

Owners widely praise the Seiko Prospex Sea for its excellent lume, robust build, and value, with many highlighting the comfortable 4 o'clock crown and reliable movements. Reviewers note impressive case finishing and attractive dials, with specific models lauded for their gradient blue designs and smooth bezel actions. Accuracy figures vary, with one owner reporting +9 seconds/day after demagnetization, while others find the watches to be good first "proper" watches. Some owners find the stock rubber straps uncomfortable or the overall size substantial on smaller wrists. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its combination of strong dive watch functionality and appealing design at its price point.

Tuseno Shellback

The build quality is cited as a significant strength. Availability is a weakness, with stock running low.

At a glance

12 of 29 specs differ
Diameter
Prospex Sea41mm
Shellback40mm
Power Reserve
Prospex Sea70h
Shellback
Water Resistance
Prospex Sea200m
Shellback200m
MSRP
Prospex Sea$900
Shellback$840

Full specifications

Case

4 specs
Category
Diver
Diameter
41mm
40mm
Thickness
12.3mm
11.9mm
Lug-to-Lug
46.9mm
47mm

Crystal & Dial

4 specs
Crystal Shape
Curved
AR Coating
Anti-reflective coating on inner surface
Dial Color
Yellow
Lume
LumiBrite on hands, index(es) and bezel
Super-LumiNova

Movement

3 specs
Caliber
6R35
Sellita SW200-1
Power Reserve
70h
Jewels
24
0

Pricing

1 specs
MSRP
$900
$840
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