Side by side

Citizen Series 8 831vsSeiko Prospex Sea 1965 Heritage Diver's Watch PADI Special Edition

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

Series 8 831
CitizenSeries 8 831
MSRP $1,095

At a glance

12 of 29 specs differ
Diameter
Series 8 83140mm
Prospex Sea 1965 Heritage Diver's Watch PADI Special Edition40mm
Power Reserve
Series 8 83142h
Prospex Sea 1965 Heritage Diver's Watch PADI Special Edition72h
Water Resistance
Series 8 831100m
Prospex Sea 1965 Heritage Diver's Watch PADI Special Edition300m
MSRP
Series 8 831$1,095
Prospex Sea 1965 Heritage Diver's Watch PADI Special Edition$1,550

Full specifications

Case

4 specs
Category
Sport
Diver
Thickness
12mm
13mm
Lug-to-Lug
46mm
46.4mm
Water Resistance
100m
300m

Crystal & Dial

4 specs
Crystal Shape
Flat
Curved
AR Coating
Underside
Anti-reflective coating on inner surface
Dial Color
Green
Black
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
9051
6R55
Power Reserve
42h
72h
Jewels
25
24

Pricing

1 specs
MSRP
$1,095
$1,550

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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 8 831

Owners widely praise the Citizen Series 8 831 for its finishing, with one owner noting it exceeded expectations. Reviewers highlight the textured Ice Blue dial and the bracelet's play of light, contributing to a comfortable and luxurious feel on the wrist. The watch features a 40mm ion-plated stainless steel case, a sapphire crystal, and 100 meters of water resistance. It is powered by the in-house Miyota Caliber 9051 automatic movement, which has a 42-hour power reserve and an accuracy range of -10 to +20 seconds per day. On balance, owners and reviewers rate the Citizen Series 8 831 highly for its impressive finishing and dial design at its price point.

From video reviewers

The case finishing, with its contrasting brushed and polished surfaces, is a notable strength. The 40mm case size and comfortable fit are also consistently mentioned. Reviewers did not reach a consensus on any weaknesses.

Seiko Prospex Sea 1965 Heritage Diver's Watch PADI Special Edition

The Seiko Prospex Sea 1965 Heritage Diver's Watch PADI Special Edition is praised for its attractive emerald green sunburst dial with gold accents and its comfortable wearability. Owners note the dial looks gorgeous in the right light, and some find it fits better than other models. The watch features a 40mm steel case, a domed sapphire crystal, and 300m water resistance, powered by the 6R55 movement with a 72-hour power reserve. However, some find the watch wears top-heavy due to its density and case design, and the bracelet clasp is criticized for stamped parts and limited micro-adjustment. The retail price of €1,700 is considered high by some, with sales recommended. Overall, owners and reviewers appreciate the dial's beauty and the watch's comfortable fit, despite some reservations about its weight distribution and bracelet clasp.

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