Side by side

Citizen Series 8 880 GMT Gold-TonevsFormex Reef 39.5 mm

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Series 8 880 GMT Gold-Tone
CitizenSeries 8 880 GMT Gold-Tone
MSRP $1,595
Reef 39.5 mm
FormexReef 39.5 mm
MSRP $2,230

At a glance

13 of 29 specs differ
Diameter
Series 8 880 GMT Gold-Tone41mm
Reef 39.5 mm39.5mm
Power Reserve
Series 8 880 GMT Gold-Tone50h
Reef 39.5 mm56h
Water Resistance
Series 8 880 GMT Gold-Tone100m
Reef 39.5 mm300m
MSRP
Series 8 880 GMT Gold-Tone$1,595
Reef 39.5 mm$2,230

Full specifications

Case

7 specs
Category
GMT
Diver
Diameter
41mm
39.5mm
Thickness
12mm
11mm
Lug-to-Lug
46mm
45.5mm
Lug Width
20mm
22mm
Material
Gold
Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

3 specs
AR Coating
Underside
Inner
Dial Color
Black
Bahama Blue
Lume
None
Super-LumiNova

Movement

2 specs
Caliber
9054
Sellita SW300-1
Power Reserve
50h
56h

Pricing

1 specs
MSRP
$1,595
$2,230

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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 8 880 GMT Gold-Tone

The gold-tone Citizen Series 8 880 GMT features a "Root Beer"-like color scheme with a gradient white-to-black dial and gold accents, inspired by the Tokyo skyline. Reviewers note its chunky, angular case silhouette with short lugs and a bracelet with two shades of ion-plated gold. The bidirectional bezel has a serrated edge and clicks hourly, featuring a blue and black 24-hour scale. It offers GMT functionality with an independently jumping local hour hand and 100 meters of water resistance, powered by the Citizen 9054 automatic GMT movement. Lume is described as good but not as intense as a dive watch. At its price point, the pin-and-collar bracelet system lacking micro-adjustments is flagged as a drawback. Overall, reviewers highlight the unique color scheme and GMT functionality as key features of the Citizen Series 8 880 GMT Gold-Tone.

Formex Reef 39.5 mm

The Formex Reef 39.5 mm is widely praised for its refined finishing, comfortable and well-proportioned case design, and impressive specifications for its price point, including COSC-certified Sellita SW300-1 movement and 300m water resistance. Owners and reviewers highlight the tool-less micro-adjust clasp and quick-release spring bars as practical features. Some reviewers note that the 22mm lug width feels slightly disproportionate to the smaller case, and the bracelet could benefit from more taper, though this is a point of contention for some owners who value the overall package. A prototype crown protrusion issue is noted as being addressed for production. On balance, owners and reviewers rate the Formex Reef 39.5 mm highly for its excellent value and well-executed design.

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