Side by side

Orient M-Force AC0NvsEcho/Neutra Rivanera Piccolo

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

The bottom line

The 33mm Rivanera Piccolo wears 12mm narrower than the 45mm M-Force AC0N — that's a meaningful jump on most wrists.

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Orient M-Force AC0N

Owners widely praise the Orient M-Force AC0N for its rugged, tank-like appearance and robust, well-built construction, with many citing the reliability of Japanese automatic movements as a key draw. Reviewers and owners consistently flag excellent lume and a superior diver bezel, though one owner notes poor low-light legibility due to weak lume. Accuracy figures vary, with one owner reporting stable +12 seconds/day timekeeping while another found it kept near-perfect time when fully wound; a wobbly crown was also noted by one owner. Overall, owners rate the Orient M-Force AC0N highly for its toughness and value, with its striking design and durable build being the primary reasons for satisfaction.

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.

Where to get them

Check prices & track

Orient M-Force AC0N
Orient M-Force AC0N
MSRP $555
Echo/Neutra Rivanera Piccolo
Echo/Neutra Rivanera Piccolo
MSRP $1,640
M-Force AC0N
OrientM-Force AC0N
MSRP $555
Rivanera Piccolo
Echo/NeutraRivanera Piccolo
MSRP $1,640

At a glance

16 of 29 specs differ
Diameter
M-Force AC0N45mm
Rivanera Piccolo33mm
Power Reserve
M-Force AC0N40h
Rivanera Piccolo40h
Water Resistance
M-Force AC0N200m
Rivanera Piccolo100m
MSRP
M-Force AC0N$555
Rivanera Piccolo$1,640

Full specifications

Case

7 specs
Category
Diver
Diameter
45mm
33mm
Thickness
12.8mm
6.9mm
Lug-to-Lug
52mm
46mm
Material
Stainless Steel
Titanium Grade 5
Finish
Brushed and polished
Polished + Sandblasted
Water Resistance
200m
100m

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Underside
Inner
Dial Color
Green
Guilloché Black
Indices
Applied

Movement

4 specs
Caliber
F6727
Sellita SW1000
Beat Rate
21,600 vph
28,800 vph
Jewels
22
25
Complications
Date
None

Pricing

1 specs
MSRP
$555
$1,640

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