Side by side

Formex Reef GMTvsStudio Underd0g The Gimlet

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Reef GMT
FormexReef GMT
MSRP $2,235
The Gimlet
Studio Underd0gThe Gimlet
MSRP $1,000

At a glance

12 of 29 specs differ
Diameter
Reef GMT42mm
The Gimlet39.5mm
Power Reserve
Reef GMT56h
The Gimlet40h
Water Resistance
Reef GMT300m
The Gimlet
MSRP
Reef GMT$2,235
The Gimlet$1,000

Full specifications

Case

6 specs
Category
GMT
Casual
Diameter
42mm
39.5mm
Thickness
11.4mm
Lug-to-Lug
47mm
Lug Width
22mm
Water Resistance
300m

Crystal & Dial

2 specs
Dial Color
Black
Standard
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Sellita SW330-2
Type
Automatic
Manual
Power Reserve
56h
40h

Pricing

1 specs
MSRP
$2,235
$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 GMT

The Formex Reef GMT is widely praised for its unique porthole case shape, COSC-certified Sellita SW330-2 movement with good finishing, and comfortable quick-release bracelet with on-the-fly micro-adjustment. Reviewers note its robust construction, impressive specifications, and strong value proposition, with a slim 11.4mm profile accommodating 300m water resistance and an exhibition caseback. However, owners widely report the 53mm lug-to-lug span with male endlinks makes it too large for smaller wrists. Some find the bezel action stiff and potentially slippery, and a reviewer desired sharper finishing and edges, deeming the aesthetic too modernist. The GMT variant sacrifices a timing bezel unless swapped, and one owner notes sharp edges on the crown and crown guard. Overall, owners and reviewers highly rate the Formex Reef GMT for its exceptional value and well-executed features, particularly its bracelet system and COSC-certified movement.

From video reviewers

The watch features a COSC-certified SW330-2 GMT movement, which is visible through a sapphire crystal display case back and beautifully decorated. The watch's water-resistance of up to 300m/1000ft is a notable feature. The 42mm diameter may be too large for smaller wrists.

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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