Side by side

Formex Reef 39.5 mmvsStudio Underd0g Goofy Panda (Gen3)

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
Goofy Panda (Gen3)
Studio Underd0gGoofy Panda (Gen3)
MSRP $550

At a glance

11 of 29 specs differ
Diameter
Reef 39.5 mm39.5mm
Goofy Panda (Gen3)38.5mm
Power Reserve
Reef 39.5 mm56h
Goofy Panda (Gen3)40h
Water Resistance
Reef 39.5 mm300m
Goofy Panda (Gen3)
MSRP
Reef 39.5 mm$2,230
Goofy Panda (Gen3)$550

Full specifications

Case

6 specs
Category
Diver
Chronograph
Diameter
39.5mm
38.5mm
Thickness
11mm
Lug-to-Lug
45.5mm
Lug Width
22mm
Water Resistance
300m

Crystal & Dial

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

Movement

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

Pricing

1 specs
MSRP
$2,230
$550

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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.

Studio Underd0g Goofy Panda (Gen3)

Owners widely praise the Studio Underd0g Goofy Panda (Gen3) for its fun, playful personality and attractive, well-executed textured degradé dial, finding it a cool and versatile watch for daily wear at a fair price point. The 38.5mm case size and sapphire crystal are noted as positives, with some finding it looks better in person than in photos. However, some owners consider the Studio Underd0g Goofy Panda (Gen3) overpriced for its Seagull ST-1901 movement, with a few expressing concerns about movement reliability, with one reporting their watch stopped after only a few hours. On balance, owners and reviewers find the Studio Underd0g Goofy Panda (Gen3) a joy to own due to its unique design and dial execution at its price.

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