Side by side

Echo/Neutra Rivanera PiccolovsZelos Hammerhead V3 300m Titanium

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

Rivanera Piccolo
Echo/NeutraRivanera Piccolo
MSRP $1,640
Hammerhead V3 300m Titanium
ZelosHammerhead V3 300m Titanium
MSRP $559

At a glance

12 of 29 specs differ
Diameter
Rivanera Piccolo33mm
Hammerhead V3 300m Titanium44mm
Power Reserve
Rivanera Piccolo40h
Hammerhead V3 300m Titanium40h
Water Resistance
Rivanera Piccolo100m
Hammerhead V3 300m Titanium300m
MSRP
Rivanera Piccolo$1,640
Hammerhead V3 300m Titanium$559

Full specifications

Case

8 specs
Category
Diver
Diameter
33mm
44mm
Thickness
6.9mm
13mm
Lug-to-Lug
46mm
44mm
Lug Width
20mm
22mm
Material
Titanium Grade 5
Titanium
Finish
Polished + Sandblasted
Brushed and polished
Water Resistance
100m
300m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Guilloché Black
Ti - Mosaic MOP

Movement

1 specs
Caliber
Sellita SW1000
Seiko NH35

Pricing

1 specs
MSRP
$1,640
$559

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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.

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.

Zelos Hammerhead V3 300m Titanium

The Zelos Hammerhead V3 300m Titanium is widely praised for its exceptional lume, unique and beautiful dial finishing that reflects light dramatically, and solid build quality that exceeds its price point. Owners also highlight its comfortable wearability, especially the lightweight titanium variant, and the convenient on-the-fly micro-adjustment on the bracelet. One owner notes the Japanese movement performs better than anticipated, and the Ti-Damascus variant features a unique, patterned dial and bezel. However, some owners find the 44mm size large, the crown "off," and the bracelet clasp could be more scratch-resistant, with resizing pins described as stubborn. Reattaching the bracelet after removal is also noted as extremely difficult. Overall, owners rate the Zelos Hammerhead V3 300m Titanium highly for its impressive dial aesthetics and value for money.

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