Side by side

Citizen Series 8 870vsMonta Atlas

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
Atlas
MontaAtlas
MSRP $2,150

At a glance

11 of 29 specs differ
Diameter
Series 8 87039mm
Atlas38.5mm
Power Reserve
Series 8 87042h
Atlas40h
Water Resistance
Series 8 870100m
Atlas152m
MSRP
Series 8 870$1,095
Atlas$2,150

Full specifications

Case

6 specs
Category
Sport
GMT
Diameter
39mm
38.5mm
Thickness
12mm
Lug-to-Lug
46mm
47mm
Lug Width
11mm
Water Resistance
100m
152m

Crystal & Dial

2 specs
AR Coating
Underside
Inner
Dial Color
Green
Silver

Movement

2 specs
Caliber
9051
Monta M-23
Power Reserve
42h
40h

Pricing

1 specs
MSRP
$1,095
$2,150

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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.

Monta Atlas

The Monta Atlas is widely praised for its exceptional wearability, with its comfortable 38.5mm case size and buttery bracelet frequently highlighted. Owners and reviewers alike commend its fit and finish, noting a mix of brushed, polished, and blasted surfaces. However, the rehaut on the opaline silver dial is considered nearly illegible for the 24-hour GMT scale, leading some to suggest other dial colors are more practical for GMT functionality. One owner also flagged the crown as less sturdy than anticipated and noted the AR coating attracts fingerprints. Overall, owners and reviewers rate the Monta Atlas highly for its comfortable dimensions and appealing finishing.

From video reviewers

The Monta Opalin Silver's dial is a notable strength, particularly its subtle gradient effect that adds depth to the watch without being too flashy. The watch offers a notable value proposition due to its movement, typically found in more expensive timepieces. The bracelet can be prone to rattle, which might be a trade-off for some buyers.

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