Which is cheaper, the Formex Reef 42 mm or the Echo/Neutra Rivanera Piccolo?

At MSRP the Echo/Neutra Rivanera Piccolo is the cheaper of the two at $1,640, against $2,414 for the Formex Reef 42 mm — a $774 gap before any retailer discounting.

Which is bigger, the Formex Reef 42 mm or the Echo/Neutra Rivanera Piccolo?

The Formex Reef 42 mm wears larger at 42mm versus 33mm for the Echo/Neutra Rivanera Piccolo — a 9mm difference across the dial.

Which has better water resistance, the Formex Reef 42 mm or the Echo/Neutra Rivanera Piccolo?

The Formex Reef 42 mm is rated to 300m versus 100m for the Echo/Neutra Rivanera Piccolo.

Which has a longer power reserve, the Formex Reef 42 mm or the Echo/Neutra Rivanera Piccolo?

The Formex Reef 42 mm carries a 56-hour power reserve against 40 hours on the Echo/Neutra Rivanera Piccolo.

What movement does the Formex Reef 42 mm run compared to the Echo/Neutra Rivanera Piccolo?

Both watches run automatic movements — the Formex Reef 42 mm uses the Sellita SW300-1 and the Echo/Neutra Rivanera Piccolo uses the Sellita SW1000.

Side by side

Formex Reef 42 mmvsEcho/Neutra Rivanera Piccolo

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

Formex Reef 42 mm

reef-42mm-automatic-cosc-300m-black

MSRP $2,414

Echo/Neutra Rivanera Piccolo

Rivanera Piccolo

MSRP $1,640

At a glance

13 of 29 specs differ

Diameter

Reef 42 mm42mm

Rivanera Piccolo33mm

Power Reserve

Reef 42 mm56h

Rivanera Piccolo40h

Water Resistance

Reef 42 mm300m

Rivanera Piccolo100m

MSRP

Reef 42 mm$2,414

Rivanera Piccolo$1,640

Full specifications

Case

8 specs

Crystal & Dial

2 specs

Dial Color

Black

Guilloché Black

Lume

Super-LumiNova

None

Movement

2 specs

Caliber

Sellita SW300-1

Sellita SW1000

Power Reserve

56h

40h

Pricing

1 specs

MSRP

$2,414

$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 42 mm

The Formex Reef 42 mm is widely praised for its comfortable bracelet featuring a micro-adjust clasp, COSC-certified Sellita movement, and excellent build quality. Owners appreciate the gradient dial's visual appeal and the overall wearability. Some owners note the seconds hand does not perfectly align with markers, and one owner found the lugs' taper hinders third-party strap fit. The bracelet's length and sporty design are noted as limiting versatility by some. On balance, owners and reviewers rate the Formex Reef 42 mm highly for its impressive wearability and value at the price point.

WatchUSeek

A Blog to Watch

Fratello

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.

Fratello

Time + Tide

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