Side by side

Citizen Series 8 870vsPhoibos Reef Master

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
Reef Master
PhoibosReef Master
MSRP $335

At a glance

11 of 29 specs differ
Diameter
Series 8 87039mm
Reef Master42mm
Power Reserve
Series 8 87042h
Reef Master40h
Water Resistance
Series 8 870100m
Reef Master200m
MSRP
Series 8 870$1,095
Reef Master$335

Full specifications

Case

6 specs
Category
Sport
Diver
Diameter
39mm
42mm
Thickness
12mm
13mm
Lug-to-Lug
46mm
48mm
Lug Width
11mm
22mm
Water Resistance
100m
200m

Crystal & Dial

2 specs
AR Coating
Underside
Yes
Lume
None
Super-LumiNova

Movement

2 specs
Caliber
9051
SII NH38
Power Reserve
42h
40h

Pricing

1 specs
MSRP
$1,095
$335

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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.

Phoibos Reef Master

Owners widely praise the Phoibos Reef Master for its exceptional value, highlighting its sapphire crystal, DLC coating, and extensive BGW9 lume. The watch is noted for its cool lume, with one owner finding it not bulky despite its robust build. The Shamrock Green dial and texture are highly praised, as is the comfortable bracelet with solid end links. However, the bezel action is described as rough, and the basic folding clasp is a disappointment. Accuracy is reported as excellent, with one owner seeing +-2 sec/day. Some find the 42mm size almost too big for their wrists, and the date window is considered too small. Overall, owners rate the Phoibos Reef Master highly for its impressive feature set and value at its price point.

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