Side by side

Citizen Series 8 870vsMarathon Steel Navigator SSNAV Quartz

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
Steel Navigator SSNAV Quartz
MarathonSteel Navigator SSNAV Quartz
MSRP $1,000

At a glance

13 of 29 specs differ
Diameter
Series 8 87039mm
Steel Navigator SSNAV Quartz41mm
Power Reserve
Series 8 87042h
Steel Navigator SSNAV Quartz40h
Water Resistance
Series 8 870100m
Steel Navigator SSNAV Quartz60m
MSRP
Series 8 870$1,095
Steel Navigator SSNAV Quartz$1,000

Full specifications

Case

7 specs
Category
Sport
Pilot
Diameter
39mm
41mm
Thickness
12mm
11mm
Lug-to-Lug
46mm
48mm
Lug Width
11mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
60m

Crystal & Dial

2 specs
AR Coating
Underside
Inner
Dial Color
Green
Black

Movement

3 specs
Caliber
9051
Swiss High-Torque Quartz
Type
Automatic
Quartz
Power Reserve
42h
40h

Pricing

1 specs
MSRP
$1,095
$1,000

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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.

Marathon Steel Navigator SSNAV Quartz

The Marathon Steel Navigator SSNAV Quartz is widely praised for its highly accurate Swiss Made ETA F06.412 PreciDrive movement, with stated accuracy of ±10 seconds per year, and its constant low-light visibility from self-illuminating tritium tubes. Owners find the watch comfortable and impressive, noting its 41mm sandblasted steel case with an asymmetrical design, bi-directional GMT bezel with excellent action, sapphire crystal, and 100m water resistance with a screw-down crown. On balance, owners and reviewers rate the Marathon Steel Navigator SSNAV Quartz highly for its robust tool watch design and exceptional accuracy at its price point.

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