Side by side

Citizen Series 8 870vsSeestern S456 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
S456 GMT
SeesternS456 GMT
MSRP $299

At a glance

17 of 29 specs differ
Diameter
Series 8 87039mm
S456 GMT41mm
Power Reserve
Series 8 87042h
S456 GMT41hh
Water Resistance
Series 8 870100m
S456 GMT200m
MSRP
Series 8 870$1,095
S456 GMT$299

Full specifications

Case

8 specs
Category
Sport
GMT
Diameter
39mm
41mm
Thickness
12mm
13mm
Lug-to-Lug
46mm
49mm
Lug Width
11mm
20mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Brushed + Polished
Water Resistance
100m
200m

Crystal & Dial

3 specs
AR Coating
Underside
Inner
Dial Color
Green
Sunray style, applied and Diamond cut Indices, C1 lume
Lume
None
C1

Movement

5 specs
Caliber
9051
Seiko NH34
Beat Rate
28,800 vph
3 vph
Power Reserve
42h
41hh
Jewels
25
24
Complications
None
GMT

Pricing

1 specs
MSRP
$1,095
$299

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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.

Seestern S456 GMT

Owners widely praise the Seestern S456 GMT for its exceptional value and finishing that exceeds expectations, with one owner noting its accuracy surpasses that of their Seiko 5. The dial displays a pearl-like rainbow effect. Some owners would prefer a bidirectional bezel over the current unidirectional one. The Seestern S456 GMT features an NH34 movement, a 39.5mm case, sapphire crystal, and an adjustable clasp. On balance, owners rate the Seestern S456 GMT highly for its impressive finishing and value proposition at its price point.

From video reviewers

The watch features stunning, detailed finishing that is difficult to top. Reviewers did not reach a consensus on any weaknesses.

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