Side by side

Sternglas Naos Pro GMT AutomatikvsLongines PRIMALUNA

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

Naos Pro GMT Automatik
SternglasNaos Pro GMT Automatik
MSRP $863
PRIMALUNA
LonginesPRIMALUNA
MSRP $1,950

At a glance

22 of 29 specs differ
Diameter
Naos Pro GMT Automatik38mm
PRIMALUNA30mm
Power Reserve
Naos Pro GMT Automatik42h
PRIMALUNA40h
Water Resistance
Naos Pro GMT Automatik50m
PRIMALUNA30m
MSRP
Naos Pro GMT Automatik$863
PRIMALUNA$1,950

Full specifications

Case

8 specs
Category
GMT
Dress
Diameter
38mm
30mm
Thickness
11mm
8.3mm
Lug-to-Lug
42mm
37mm
Lug Width
20mm
7mm
Finish
Brushed and polished
Water Resistance
50m
30m
Caseback
Solid
Transparent case back with sapphire crystal

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Both sides
Dial Color
Blue
Indices
Applied
Diamond indexes
Lume
Luminova Punkte
Super-LumiNova

Movement

8 specs
Caliber
Miyota 9075
L257.2
Type
Automatic
Quartz
Beat Rate
28,800 vph
25,200 vph
Power Reserve
42h
40h
Jewels
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds and date

Pricing

1 specs
MSRP
$863
$1,950

Follow this matchup

Get a note when Sternglas Naos Pro GMT Automatik vs Longines PRIMALUNA gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

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

Sternglas Naos Pro GMT Automatik

Owners report the Sternglas Naos can feel underwhelming with a cheap feel and hands resembling office printer output, with some finding it wears smaller than expected and looks like a toy, though others appreciate its understated design. Reviewers highlight the Argo Automatic variant as a compelling sub-€400 mechanical watch with a colorful dial and practical date wheel, suitable for new collectors, featuring a 38mm case and a Miyota 8215 movement. On balance, the consensus is that the Sternglas Naos offers a mixed ownership experience, with its value proposition and entry-level appeal being its strongest points for some.

From video reviewers

The Sternglas Naos Pro GMT Automatik features a clean Bauhaus design that sets it apart from other GMT watches. A notable weakness is the watch's bezel action, which is not as smooth as some reviewers would have liked. Reviewers disagree on the watch's case size, with one reviewer stating it's slightly larger than the original Naos Automatic, while another reviewer doesn't mention this aspect at all.

Longines PRIMALUNA

Owners widely praise the Longines PRIMALUNA for its attractive style and understated 26.5mm size, with some preferring the automatic for its craftsmanship and heirloom quality. The redesigned 34mm model features an automatic movement, date complication, and polished case design, available in steel or bi-metal with various dial and strap options. Accuracy averages a loss of 1.3 seconds per day across six positions, running 3-4 seconds slower on the wrist, which is within COSC standards. Prices range from EUR 2,850 to EUR 6,600. Overall, owners rate the Longines PRIMALUNA highly for its appealing design and reliable automatic movement.

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.

Adjacent matchups

People also compared

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