Side by side

Formex Reef 39.5 mmvsSpinnaker Bradner Pearl Diver

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
Bradner Pearl Diver
SpinnakerBradner Pearl Diver
MSRP $370

At a glance

10 of 29 specs differ
Diameter
Reef 39.5 mm39.5mm
Bradner Pearl Diver42mm
Power Reserve
Reef 39.5 mm56h
Bradner Pearl Diver40h
Water Resistance
Reef 39.5 mm300m
Bradner Pearl Diver180m
MSRP
Reef 39.5 mm$2,230
Bradner Pearl Diver$370

Full specifications

Case

5 specs
Diameter
39.5mm
42mm
Thickness
11mm
15mm
Lug-to-Lug
45.5mm
50mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
180m

Crystal & Dial

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

Movement

2 specs
Caliber
Sellita SW300-1
SII NH35A
Power Reserve
56h
40h

Pricing

1 specs
MSRP
$2,230
$370

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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.

Spinnaker Bradner Pearl Diver

The Spinnaker Bradner Pearl Diver is noted by owners as large on smaller wrists, with a 50mm lug-to-lug and 15mm height being a concern, though some find it acceptable with specific strap choices. Opinions on finishing quality vary, with one owner reporting issues like a poorly seated bezel and crooked indices. Overall, owners rate the Spinnaker Bradner Pearl Diver with mixed reviews regarding its size and finishing.

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