Side by side

Citizen Series 8 870vsSpinnaker Dumas GMT

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

Series 8 870
CitizenSeries 8 870
MSRP $1,095
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

12 of 29 specs differ
Diameter
Series 8 87039mm
Dumas GMT44mm
Power Reserve
Series 8 87042h
Dumas GMT40h
Water Resistance
Series 8 870100m
Dumas GMT300m
MSRP
Series 8 870$1,095
Dumas GMT$399

Full specifications

Case

7 specs
Category
Sport
GMT
Diameter
39mm
44mm
Thickness
12mm
15mm
Lug-to-Lug
46mm
48mm
Lug Width
11mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

2 specs
AR Coating
Underside
Inner
Dial Color
Green
Blue

Movement

2 specs
Caliber
9051
Seiko NH34A
Power Reserve
42h
40h

Pricing

1 specs
MSRP
$1,095
$399

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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 8 870

The Citizen Series 8 870 is praised for its compelling value proposition and modern Japanese design with a sporty edge. Reviewers note its 40mm steel case, glossy dial with applied markers, and the in-house Calibre 0950 automatic movement offering 50 hours of power reserve and enhanced magnetic resistance. The flat sapphire crystal is noted to collect fingerprints, and the solid caseback omits a view of the movement. The limited edition variant features a 40.8mm black DLC-coated case, a carbon fiber dial, and the 0950 movement regulated to -5/+10 seconds per day. Overall, the Citizen Series 8 870 is viewed as a strong offering for its blend of design and features.

Spinnaker Dumas GMT

Owners praise the Spinnaker Dumas GMT's satisfying lume, including on the crown, and good finishing, with one owner finding it wears well on a 17cm wrist. The watch features a Seiko NH34A GMT movement and a blue gradient dial. Reviewers note its 44mm diameter and 209g weight on the bracelet make it unsuitable for smaller wrists.

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