Side by side

Formex Reef 39.5 mmvsStudio Underd0g The Gimlet

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
The Gimlet
Studio Underd0gThe Gimlet
MSRP $1,000

At a glance

11 of 29 specs differ
Diameter
Reef 39.5 mm39.5mm
The Gimlet39.5mm
Power Reserve
Reef 39.5 mm56h
The Gimlet40h
Water Resistance
Reef 39.5 mm300m
The Gimlet
MSRP
Reef 39.5 mm$2,230
The Gimlet$1,000

Full specifications

Case

5 specs
Category
Diver
Casual
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

3 specs
Caliber
Sellita SW300-1
Type
Automatic
Manual
Power Reserve
56h
40h

Pricing

1 specs
MSRP
$2,230
$1,000

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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 The Gimlet

Studio Underd0g The Gimlet is praised for its playful, layered dial construction featuring a textured sapphire disc over a luminous base, creating depth and animation, and its comfortable 38mm case dimensions. Owners note its attractive dial color and combination, though some find the design too similar to other models and question the aesthetic of the visible dial screws. The watch utilizes a reliable, tactile Sellita SW210-1 manual-wind movement. On balance, owners and reviewers rate Studio Underd0g The Gimlet highly for its unique dial construction and comfortable wearability.

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