Side by side

Formex Reef 39.5 mmvsSpinnaker Fleuss Mechanical Chronograph

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
Fleuss Mechanical Chronograph
SpinnakerFleuss Mechanical Chronograph
MSRP $550

At a glance

11 of 29 specs differ
Diameter
Reef 39.5 mm39.5mm
Fleuss Mechanical Chronograph43mm
Power Reserve
Reef 39.5 mm56h
Fleuss Mechanical Chronograph40h
Water Resistance
Reef 39.5 mm300m
Fleuss Mechanical Chronograph100m
MSRP
Reef 39.5 mm$2,230
Fleuss Mechanical Chronograph$550

Full specifications

Case

6 specs
Category
Diver
Chronograph
Diameter
39.5mm
43mm
Thickness
11mm
14mm
Lug-to-Lug
45.5mm
51mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

2 specs
Dial Color
Bahama Blue
Black
Lume
Super-LumiNova
None

Movement

2 specs
Caliber
Sellita SW300-1
Seagull ST1908
Power Reserve
56h
40h

Pricing

1 specs
MSRP
$2,230
$550

Follow this matchup

Get a note when Formex Reef 39.5 mm vs Spinnaker Fleuss Mechanical Chronograph 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.

Spinnaker Fleuss Mechanical Chronograph

Owners widely report a split on build quality, with some finding the Spinnaker Fleuss Mechanical Chronograph's construction unimpressive due to issues like a poorly seated bezel and crooked indices, while others praise its robustness and aesthetic appeal. The unique dial features character hands and glowing eyes serving as subdials and a 24-hour indicator, though the chronograph function is limited to 60 minutes. On balance, the Spinnaker Fleuss Mechanical Chronograph elicits divided opinions on its build quality, with its artistic dial design being a notable, albeit polarizing, feature.

From video reviewers

The Spinnaker Googly Black's notable strength is its reported water-resistance of 300 fathoms or 550 metres. A weakness of this watch is its lume brightness, which is somewhat lacking. Reviewers disagree on the watch's ideal size, with one reviewer noting its slimmed-down design and the other mentioning its overall size and 26+ millimeter thickness.

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.