Side by side

Citizen Series 8 870vsGrand Seiko SBGM221

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

Series 8 870
CitizenSeries 8 870
MSRP $1,595
SBGM221
Grand SeikoSBGM221
MSRP $5,400

At a glance

11 of 29 specs differ
Diameter
Series 8 87040.8mm
SBGM22139.5mm
Power Reserve
Series 8 87050h
SBGM22172h
Water Resistance
Series 8 870100m
SBGM22130m
MSRP
Series 8 870$1,595
SBGM221$5,400

Full specifications

Case

6 specs
Category
Dress
GMT
Diameter
40.8mm
39.5mm
Thickness
12mm
13.7mm
Lug-to-Lug
46mm
46.9mm
Lug Width
11mm
19mm
Water Resistance
100m
30m

Crystal & Dial

2 specs
AR Coating
Underside
Yes
Dial Color
Grey
Black

Movement

2 specs
Caliber
0950
9S66
Power Reserve
50h
72h

Pricing

1 specs
MSRP
$1,595
$5,400

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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 sharp 40mm steel case with unique bezel construction and a glossy dial featuring finely brushed and polished applied hour markers. It is powered by the in-house caliber 0950 automatic movement, which operates at 4Hz and offers a 50-hour power reserve with enhanced magnetic resistance. The limited edition features a black Duratect DLC coated case, a carbon fiber dial, and is regulated to -5/+10 seconds per day. On balance, reviewers highlight the Series 8 870's distinctive case finishing and the robust in-house movement as key strengths.

Grand Seiko SBGM221

Grand Seiko SBGM221 is widely praised for its exceptional dial finish, highly polished hands and indices, and elegant design. Owners consistently highlight the stunning craftsmanship, with specific mention of the up to 11 hand-polished facets on its rectangular markers. The reliable 9S66 movement is noted for its 72-hour power reserve and true GMT functionality, tested beyond Chronometer specifications. Some enthusiasts desire a bidirectional 24-hour bezel, which the Grand Seiko SBGM221 lacks, and its 13.7mm thickness and 19mm lug width are noted as potential limitations. On balance, owners rate the Grand Seiko SBGM221 highly for its exquisite finishing and elegant, comfortable design.

From video reviewers

The SBGM221 is praised for its value within the Grand Seiko lineup. The lug width is cited as a weakness.

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