Side by side

Citizen Series 8 870vsFormex Essence ThirtyNine

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
Essence ThirtyNine
FormexEssence ThirtyNine
MSRP $2,390

At a glance

10 of 29 specs differ
Diameter
Series 8 87040.8mm
Essence ThirtyNine39mm
Power Reserve
Series 8 87050h
Essence ThirtyNine41h
Water Resistance
Series 8 870100m
Essence ThirtyNine100m
MSRP
Series 8 870$1,595
Essence ThirtyNine$2,390

Full specifications

Case

4 specs
Diameter
40.8mm
39mm
Thickness
12mm
10mm
Lug-to-Lug
46mm
45mm
Lug Width
11mm
20mm

Crystal & Dial

3 specs
AR Coating
Underside
Inner
Dial Color
Grey
Space Ghost
Lume
None
Super-LumiNova

Movement

2 specs
Caliber
0950
Sellita SW200-1
Power Reserve
50h
41h

Pricing

1 specs
MSRP
$1,595
$2,390

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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.

Formex Essence ThirtyNine

The Formex Essence ThirtyNine is praised for its impressive build quality and value, featuring a patented case suspension system for comfort and protection. It houses a COSC-certified Sellita SW200-1 movement with a 38-hour power reserve and a tool-free strap quick-release system. A minor inconvenience noted is the specific closing order of the clasp. On balance, reviewers rate the Formex Essence ThirtyNine highly for its comfortable wearability and excellent value at its price point.

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