Side by side

Alexander James Watches A3 Omen IIvsNaga Watches Opera

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

Add a watch
A3 Omen II
Alexander James WatchesA3 Omen II
MSRP $650
Opera
Naga WatchesOpera
MSRP $917
Buy from Alexander James Watches ↗
Buy used on eBay ↗
Buy from Naga Watches ↗
Buy used on eBay ↗

At a glance

7 of 29 specs differ
Diameter
A3 Omen II38mm
Opera39mm
Power Reserve
A3 Omen II40h
Opera—
Water Resistance
A3 Omen II100m
Opera100m
MSRP
A3 Omen II$650
Opera$917

Full specifications

Case

4 specs
Diameter
38mm
39mm
Thickness
10.4mm
10mm
Lug-to-Lug
46mm
—
Lug Width
20mm
—

Crystal & Dial

1 specs
Dial Color
—
Lapislazuli

Movement

1 specs
Power Reserve
40h
—

Pricing

1 specs
MSRP
$650
—
Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Duckworth Prestex Verimatic 39mm
Duckworth Prestexmicro

Verimatic 39mm

5 variantsRef. verimatic
39mm·Automatic·200m WR
$775MSRP
—Used
Mark Time Watches M 6
Mark Time Watchesmicro

M 6

6 variantsRef. m-6
39mm·Automatic·100m WR
$495MSRP
—Used
Duckworth Prestex California Limited Edition
Duckworth Prestexmicro

California Limited Edition

5 variantsRef. prestex-california
39mm·Automatic·200m WR
$790MSRP
—Used
Decima Gatekeeper
Decimamicro

Gatekeeper

8 variantsRef. gatekeeper-white
38mm·Automatic
$599MSRP
—Used
Monro Adventure Watches Luna Adventure
Monro Adventure Watchesmicro

Luna Adventure

7 variantsRef. monro-luna-adventure-new-limited-edition-coming-soon
39mm·Automatic·100m WR
$804MSRP
—Used
Dumoreau DM01
Dumoreaumicro

DM01

4 variantsRef. dm01-turquoise
38.6mm·Automatic·100m WR
—MSRP
—Used
Selten Jui Bauhinia
Seltenmicro

Jui Bauhinia

2 variantsRef. jui-聚-bauhinia-whc-x-selten-pink
39mm·Automatic
—MSRP
—Used
Orion Watches Tesseract
Orion Watchesmicro

Tesseract

3 variantsRef. tesseract-cerulean-blue
39mm·Automatic·100m WR
$3,850MSRP
—Used
All alternatives to the A3 Omen II →All alternatives to the Opera →
Explore the full catalog

Follow this matchup

Get a note when Alexander James Watches A3 Omen II vs Naga Watches Opera gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.

Duckworth Prestex Verimatic 39mmvsNaga Watches OperaDuckworth Prestex California Limited EditionvsNaga Watches OperaMonro Adventure Watches Luna AdventurevsNaga Watches OperaMonro Adventure Watches LUNA ADVENTURE MLA-PNR POINT OF NO RETURN, 9039 Automatic Watch, 39mm EPDM RubbervsNaga Watches OperaAlexander James Watches A3 Omen IIvsMark Time Watches M 6Alexander James Watches A3 Omen IIvsDecima Gatekeeper
Edit this comparisonAdd another watchExplore more 37–40mm watches