Side by side

Citizen Series 8 870vsYema Wristmaster Slim CMM.20

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
Wristmaster Slim CMM.20
YemaWristmaster Slim CMM.20
MSRP $2,117

At a glance

11 of 29 specs differ
Diameter
Series 8 87040.8mm
Wristmaster Slim CMM.2039mm
Power Reserve
Series 8 87050h
Wristmaster Slim CMM.2040h
Water Resistance
Series 8 870100m
Wristmaster Slim CMM.20100m
MSRP
Series 8 870$1,595
Wristmaster Slim CMM.20$2,117

Full specifications

Case

6 specs
Category
Dress
GMT
Diameter
40.8mm
39mm
Thickness
12mm
9mm
Lug-to-Lug
46mm
Lug Width
11mm
24mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

2 specs
AR Coating
Underside
Inner
Dial Color
Grey
Black

Movement

2 specs
Caliber
0950
Yema CMM.20
Power Reserve
50h
40h

Pricing

1 specs
MSRP
$1,595
$2,117

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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.

Yema Wristmaster Slim CMM.20

The Yema Wristmaster Slim CMM.20 is widely praised for its compelling integrated bracelet design and comfortable 39mm wearability. Reviewers highlight its impressive value, featuring an in-house CMM.20 micro-rotor movement with a 70-hour power reserve, adjusted to -3/+7 seconds per day, all within a slim 9mm case. Some note the domed sapphire crystal can produce glare and the dial text is quite small. On balance, reviewers rate the Yema Wristmaster Slim CMM.20 highly for its integrated design and value proposition with a micro-rotor movement.

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