Side by side

Citizen Series 8 870vsZelos Comet 39

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
Comet 39
ZelosComet 39
MSRP $2,499

At a glance

13 of 29 specs differ
Diameter
Series 8 87040.8mm
Comet 3939mm
Power Reserve
Series 8 87050h
Comet 3940h
Water Resistance
Series 8 870100m
Comet 3950m
MSRP
Series 8 870$1,595
Comet 39$2,499

Full specifications

Case

6 specs
Diameter
40.8mm
39mm
Thickness
12mm
7.6mm
Lug-to-Lug
46mm
39mm
Lug Width
11mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
50m

Crystal & Dial

3 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Underside
Inner
Dial Color
Grey
Tantalum LE

Movement

3 specs
Caliber
0950
ETA/Peseux 7001
Type
Automatic
Manual
Power Reserve
50h
40h

Pricing

1 specs
MSRP
$1,595
$2,499

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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.

Zelos Comet 39

Owners widely praise the Zelos Comet 39 for its wearable 39mm size, thin profile under 10mm thanks to its manual-wind Sellita SW215 movement, and its captivating dial with a deep starburst effect. The winding action is described as a joy, and the watch is considered a stunner for its price, blending modern and vintage aesthetics. Some owners note frustration with Zelos's limited production runs leading to quick sell-outs. One owner found the logo childlike, while another experienced strap-rubbing issues with the short lugs, which were resolved with a Milanese bracelet. Overall, owners and reviewers rate the Zelos Comet 39 highly for its excellent value and striking dial design.

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