Side by side

Citizen Series 8 890vsSeiko Prospex Sea

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

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What people say

Owners + reviewers, side by side

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

Citizen Series 8 890

The Citizen Series 8 890 is praised for its robust build, 200 meters of water resistance without a screw-down crown, and excellent case finishing for its price. Reviewers note the smooth action of its internal bezel, though one suggests the knurling could be more pronounced for better grip. It utilizes the caliber 9051 automatic movement with a 42-hour power reserve, which often performs better than Citizen's stated -10/+20 seconds per day. The watch's design is noted as borrowing from popular luxury sports watches, and its lug-to-lug measurement can make it wear large. Overall, reviewers find the Citizen Series 8 890 a compelling and robust sports watch, particularly for its finishing and water resistance capabilities.

From video reviewers

Advanced finishing techniques on the 42.6mm octagonal silver-tone stainless steel case showcase durability and elegance. The watch's textured blue dial may not appeal to everyone's taste. Reviewers disagree on whether the Citizen Series 8 890's movement (Caliber 9051) is a strong point due to differing comparisons (Grand Seiko vs. AP Royal Oak).

Seiko Prospex Sea

Seiko Prospex Sea models are widely praised for their excellent build quality, value for money, and comfortable wearability, with many appreciating the vintage-inspired designs and robust construction. Owners note the silicone straps are surprisingly comfortable and well-finished, and the Lumibrite lume is excellent. However, some find the 44.3mm size and thickness too large for smaller wrists, though others report the sizing as perfect. The 6R15 movement in some variants offers accuracy around +4 seconds per day with a 50-hour power reserve, while newer movements offer more. Some models are criticized for a bracelet width not matching the case size or a rudimentary clasp for their price point. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its impressive case work and finishing at its price point.

At a glance

12 of 29 specs differ
Diameter
Series 8 89042.6mm
Prospex Sea41.3mm
Power Reserve
Series 8 89042h
Prospex Sea72h
Water Resistance
Series 8 890200m
Prospex Sea300m
MSRP
Series 8 890$1,395
Prospex Sea$1,100

Full specifications

Case

5 specs
Diameter
42.6mm
41.3mm
Thickness
0mm
12.5mm
Lug-to-Lug
0mm
48.2mm
Lug Width
0mm
20mm
Water Resistance
200m
300m

Crystal & Dial

3 specs
AR Coating
Underside
Anti-reflective coating on inner surface
Dial Color
Grey
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Miyota 9051
Seiko 6R55
Power Reserve
42h
72h
Jewels
0
24

Pricing

1 specs
MSRP
$1,395
$1,100
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