Side by side

Formex Reef GMTvsSeiko Coutura

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

Reef GMT
FormexReef GMT
MSRP $2,235
Coutura
SeikoCoutura
MSRP $595

At a glance

12 of 29 specs differ
Diameter
Reef GMT42mm
Coutura42.5mm
Power Reserve
Reef GMT56h
Coutura40h
Water Resistance
Reef GMT300m
Coutura100m
MSRP
Reef GMT$2,235
Coutura$595

Full specifications

Case

6 specs
Category
GMT
Dress
Diameter
42mm
42.5mm
Thickness
11.4mm
10.2mm
Lug-to-Lug
47mm
46mm
Lug Width
22mm
12mm
Water Resistance
300m
100m

Crystal & Dial

1 specs
Lume
Super-LumiNova
LumiBrite on hands and index(es)

Movement

4 specs
Caliber
Sellita SW330-2
V157
Type
Automatic
Quartz
Power Reserve
56h
40h
Jewels
25
2

Pricing

1 specs
MSRP
$2,235
$595

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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.

Formex Reef GMT

The Formex Reef GMT is widely praised for its unique porthole case shape, COSC-certified Sellita SW330-2 movement with good finishing, and comfortable quick-release bracelet with on-the-fly micro-adjustment. Reviewers note its robust construction, impressive specifications, and strong value proposition, with a slim 11.4mm profile accommodating 300m water resistance and an exhibition caseback. However, owners widely report the 53mm lug-to-lug span with male endlinks makes it too large for smaller wrists. Some find the bezel action stiff and potentially slippery, and a reviewer desired sharper finishing and edges, deeming the aesthetic too modernist. The GMT variant sacrifices a timing bezel unless swapped, and one owner notes sharp edges on the crown and crown guard. Overall, owners and reviewers highly rate the Formex Reef GMT for its exceptional value and well-executed features, particularly its bracelet system and COSC-certified movement.

From video reviewers

The watch features a COSC-certified SW330-2 GMT movement, which is visible through a sapphire crystal display case back and beautifully decorated. The watch's water-resistance of up to 300m/1000ft is a notable feature. The 42mm diameter may be too large for smaller wrists.

Seiko Coutura

Seiko Coutura owners widely praise its wear-resistant metal treatments, with one reporting minimal scratches after six years. The watch is also lauded for its solar and perpetual calendar features, offering a "set it and forget it" experience with 100m water resistance. Owners appreciate its weight and captivating appearance, with one purchasing it for $410.88. The aesthetic, featuring contrasting gold indices and hands against a black dial, is considered appealing by some, particularly those who enjoy its unique and fun design. However, opinions on styling are divided, with some finding the dial too busy and gaudy, and others describing the line as large or sitting too high. The proprietary bracelet is also noted as a downside by some owners. One owner reports the solar power reserve can be problematic if not exposed to light regularly, while another calls their kinetic perpetual a beautiful keeper with a 4-year reserve.

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