Side by side

Citizen Series 8 831vsBoldr Odyssey Freediver

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
Odyssey Freediver
BoldrOdyssey Freediver
MSRP $649

At a glance

10 of 29 specs differ
Diameter
Series 8 83140mm
Odyssey Freediver40mm
Power Reserve
Series 8 83142h
Odyssey Freediver40h
Water Resistance
Series 8 831100m
Odyssey Freediver300m
MSRP
Series 8 831$1,095
Odyssey Freediver$649

Full specifications

Case

4 specs
Category
Sport
Diver
Thickness
12mm
14.2mm
Lug-to-Lug
46mm
48mm
Water Resistance
100m
300m

Crystal & Dial

3 specs
AR Coating
Underside
Yes
Dial Color
Green
202
Lume
None
Super-LumiNova

Movement

2 specs
Caliber
9051
Cal
Power Reserve
42h
40h

Pricing

1 specs
MSRP
$1,095
$649

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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.

Boldr Odyssey Freediver

The Boldr Odyssey Freediver is praised for its bead-blasted steel case with polished bevels and a custom steel bracelet designed for wrist curvature. Reviewers note its strong legibility, applied details, and vintage-inspired date window on fresh dial colors. The 44mm case is surgical-grade steel with a brushed finish and angular lugs, water-resistant to 300 meters. It houses a Miyota 9075 movement with a jumping local hour function. On balance, reviewers highlight the Boldr Odyssey Freediver's thoughtful case finishing and functional movement with a local hour complication.

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