Side by side

Formex Reef 39.5 mmvsStraton Straton Speciale Automatic or Quartz watch

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 Speciale Automatic or Quartz watch
StratonStraton Speciale Automatic or Quartz watch
MSRP $599

At a glance

19 of 29 specs differ
Diameter
Reef 39.5 mm39.5mm
Straton Speciale Automatic or Quartz watch42mm
Power Reserve
Reef 39.5 mm56h
Straton Speciale Automatic or Quartz watch
Water Resistance
Reef 39.5 mm300m
Straton Speciale Automatic or Quartz watch100m
MSRP
Reef 39.5 mm$2,230
Straton Speciale Automatic or Quartz watch$599

Full specifications

Case

8 specs
Category
Diver
Chronograph
Diameter
39.5mm
42mm
Thickness
11mm
15.9mm
Lug-to-Lug
45.5mm
40.8mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Water Resistance
300m
100m
Caseback
Solid

Crystal & Dial

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

Movement

5 specs
Caliber
Sellita SW300-1
Valjoux ETA7750
Type
Automatic
Quartz
Beat Rate
28,800 vph
0 vph
Power Reserve
56h
0h
Jewels
25
0

Pricing

1 specs
MSRP
$2,230
$599

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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 Speciale Automatic or Quartz watch

Owners widely praise the Straton Speciale Automatic or Quartz watch for its great retro feel, TV-shaped case, and fun color combinations. The automatic version is reported to be accurate at approximately +2 seconds per day. The meca-quartz model starts at $320, while the automatic is around $800 with a bracelet, both featuring a 40.8mm lug-to-lug measurement for wearability. Owners consider the quartz version reasonably priced, with its value linked to its mechanical movement. Overall, owners rate the Straton Speciale Automatic or Quartz watch highly for its retro aesthetic and wearability at its price point.

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