Side by side

Formex Reef 39.5 mmvsSeiko Coutura

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

Reef 39.5 mm
FormexReef 39.5 mm
MSRP $2,230
Coutura
SeikoCoutura
MSRP $525

At a glance

12 of 29 specs differ
Diameter
Reef 39.5 mm39.5mm
Coutura44mm
Power Reserve
Reef 39.5 mm56h
Coutura40h
Water Resistance
Reef 39.5 mm300m
Coutura100m
MSRP
Reef 39.5 mm$2,230
Coutura$525

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
39.5mm
44mm
Thickness
11mm
11.8mm
Lug-to-Lug
45.5mm
46mm
Lug Width
22mm
12mm
Water Resistance
300m
100m

Crystal & Dial

2 specs
Dial Color
Bahama Blue
Black
Lume
Super-LumiNova
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Sellita SW300-1
V198
Type
Automatic
Quartz
Power Reserve
56h
40h

Pricing

1 specs
MSRP
$2,230
$525

Follow this matchup

Get a note when Formex Reef 39.5 mm vs Seiko Coutura gets more votes, a community discussion, or a price drop. No account needed.

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 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.

Seiko Coutura

Owners widely report the Seiko Coutura's wear-resistant metal treatments maintain their appearance over years of ownership. The watch is praised for its solar power and perpetual calendar features, with some owners finding its weight and appearance captivating. However, opinions on its styling are divided, with some finding it gaudy or too busy, while others consider it beautiful and a fun departure from minimalist designs. Some owners express dissatisfaction with the proprietary bracelet. One owner notes the solar power reserve requires constant light exposure. Overall, owners rate the Seiko Coutura well for its durable finish and useful solar and perpetual calendar complications, despite polarizing styling.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.