Side by side

Sternglas Naos Pro GMT AutomatikvsOrient Bambino Open Heart

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
Bambino Open Heart
OrientBambino Open Heart
MSRP $315

At a glance

18 of 29 specs differ
Diameter
Naos Pro GMT Automatik38mm
Bambino Open Heart40.5mm
Power Reserve
Naos Pro GMT Automatik42h
Bambino Open Heart40h
Water Resistance
Naos Pro GMT Automatik50m
Bambino Open Heart30m
MSRP
Naos Pro GMT Automatik$863
Bambino Open Heart$315

Full specifications

Case

7 specs
Category
GMT
Diameter
38mm
40.5mm
Thickness
11mm
12mm
Lug-to-Lug
42mm
46mm
Lug Width
20mm
21mm
Water Resistance
50m
30m
Caseback
Solid
Display

Crystal & Dial

6 specs
Crystal
Sapphire
Mineral
Crystal Shape
Flat
AR Coating
Inner
Dial Color
White
Indices
Applied
Lume
Luminova Punkte
None

Movement

4 specs
Caliber
Miyota 9075
FT622
Beat Rate
28,800 vph
21,600 vph
Power Reserve
42h
40h
Jewels
22

Pricing

1 specs
MSRP
$863
$315

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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.

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.

Orient Bambino Open Heart

Owners widely praise the Orient Bambino Open Heart for its dressy style, clean dial, and reliable in-house F6724 automatic movement with hacking and hand-winding. Reviewers and owners highlight its value proposition, with one owner noting it remains a regular wear even after acquiring pricier watches. Some owners find the build quality and stock strap less premium, with one noting the mineral crystal is prone to scratching and another that the movement can be noisy. The 21mm lug width is cited as making strap swapping slightly more complicated. Overall, owners and reviewers rate the Orient Bambino Open Heart highly for its dressy aesthetic and in-house movement at its price point.

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