Side by side

Formex Reef GMTvsHorage Revolution 3 MicroReg

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

Reef GMT
FormexReef GMT
MSRP $2,235
Revolution 3 MicroReg
HorageRevolution 3 MicroReg
MSRP $5,320

At a glance

9 of 29 specs differ
Diameter
Reef GMT42mm
Revolution 3 MicroReg41mm
Power Reserve
Reef GMT56h
Revolution 3 MicroReg72h
Water Resistance
Reef GMT300m
Revolution 3 MicroReg100m
MSRP
Reef GMT$2,235
Revolution 3 MicroReg$5,320

Full specifications

Case

5 specs
Category
GMT
Dress
Diameter
42mm
41mm
Thickness
11.4mm
10.05mm
Lug-to-Lug
47mm
48.22mm
Water Resistance
300m
100m

Crystal & Dial

1 specs
AR Coating
Inner
No

Movement

2 specs
Caliber
Sellita SW330-2
Horage K2
Power Reserve
56h
72h

Pricing

1 specs
MSRP
$2,235
$5,320

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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.

Horage Revolution 3 MicroReg

The Horage Revolution 3 MicroReg showcases an innovative external micro-adjustment system for on-the-fly regulation via electromagnetic pulse, a remarkable feat of micro-engineering. This proof-of-concept prototype is still in early development, with a projected launch in late summer 2026 and a founder's price of CHF 3,900. On balance, reviewers highlight the revolutionary regulation technology as the defining characteristic of the Horage Revolution 3 MicroReg.

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