Side by side

Formex Reef GMTvsEcho/Neutra Rivanera Piccolo

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

Reef GMT
FormexReef GMT
MSRP $2,235
Rivanera Piccolo
Echo/NeutraRivanera Piccolo
MSRP $1,640

At a glance

13 of 29 specs differ
Diameter
Reef GMT42mm
Rivanera Piccolo33mm
Power Reserve
Reef GMT56h
Rivanera Piccolo40h
Water Resistance
Reef GMT300m
Rivanera Piccolo100m
MSRP
Reef GMT$2,235
Rivanera Piccolo$1,640

Full specifications

Case

8 specs
Category
GMT
Diameter
42mm
33mm
Thickness
11.4mm
6.9mm
Lug-to-Lug
47mm
46mm
Lug Width
22mm
20mm
Material
Stainless Steel
Titanium Grade 5
Finish
Brushed and polished
Polished + Sandblasted
Water Resistance
300m
100m

Crystal & Dial

2 specs
Dial Color
Black
Guilloché Black
Lume
Super-LumiNova
None

Movement

2 specs
Caliber
Sellita SW330-2
Sellita SW1000
Power Reserve
56h
40h

Pricing

1 specs
MSRP
$2,235
$1,640

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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.

Echo/Neutra Rivanera Piccolo

The Echo/Neutra Rivanera Piccolo is praised for its charming and impressive design, featuring a lightweight 26mm grade 5 titanium case with a sandblasted finish and polished edges. It is powered by an automatic Sellita SW1000 elaboré grade movement with a 46-hour power reserve and is available with an ultra-black Musou Black dial option. One reviewer suggested removing the date for a cleaner dial, while both sources note the straps lack a quick-release system. Overall, reviewers highlight the Rivanera Piccolo's distinctive design and titanium construction as its primary strengths.

From video reviewers

The thin 6.9mm case is a standout feature. Reviewers noted the Grade 5 titanium case construction. No shared weaknesses were identified.

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