Side by side

Formex Reef 39.5 mmvsStraton Straton Curve Chrono MKII

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
Straton Curve Chrono MKII
StratonStraton Curve Chrono MKII
MSRP $1,099

At a glance

19 of 29 specs differ
Diameter
Reef 39.5 mm39.5mm
Straton Curve Chrono MKII42mm
Power Reserve
Reef 39.5 mm56h
Straton Curve Chrono MKII
Water Resistance
Reef 39.5 mm300m
Straton Curve Chrono MKII100m
MSRP
Reef 39.5 mm$2,230
Straton Curve Chrono MKII$1,099

Full specifications

Case

8 specs
Category
Diver
Chronograph
Diameter
39.5mm
42mm
Thickness
11mm
13.9mm
Lug-to-Lug
45.5mm
47.4mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Water Resistance
300m
100m
Caseback
Solid
Stamped Design with Wheel

Crystal & Dial

5 specs
Crystal Shape
Flat
Domed
AR Coating
Inner
Yes
Dial Color
Bahama Blue
Indices
Applied
Lume
Super-LumiNova
None

Movement

5 specs
Caliber
Sellita SW300-1
NE86
Type
Automatic
Quartz
Beat Rate
28,800 vph
0 vph
Power Reserve
56h
0h
Jewels
25
0

Pricing

1 specs
MSRP
$2,230
$1,099

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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 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.

Straton Curve Chrono MKII

The watch offers a retro motorsport aesthetic with a quality finish and well-chosen movements at an affordable price. Reviewers did not agree on any specific weaknesses.

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