Sternglas Naos XL AutomatikvsOrient Bambino Open Heart

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Sternglas Naos XL Automatik at true scale

Naos XL Automatik

Orient Bambino Open Heart at true scale

Bambino Open Heart

Diameter

42mm

40.5mm

Lug-to-Lug

47mm

46mm

lowest

Thickness

12mm

12mm

Water Resistance

50m

highest

30m

Power Reserve

n/a

40h

MSRP

$463

$315

lowest

Movement

Miyota 8215

Orient FT622

Case

6 specs
Category
Sport
Dress
Diameter
42mm
40.5mm
Lug-to-Lug
47mm
46mm
Lug Width
20mm
21mm
Water Resistance
50m
30m
Caseback
n/a
Display

Crystal & Dial

3 specs
Crystal
Sapphire
Mineral
Dial Color
n/a
White
Lume
Luminova
None

Movement

6 specs
Caliber
Miyota 8215
Orient FT622
Beat Rate
0 vph
21,600 vph
Power Reserve
n/a
40h
Jewels
n/a
22
Hacking
No
Yes
Hand-winding
No
Yes

Pricing

1 specs
MSRP
$463
$315
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Reviews

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

Sternglas Naos XL Automatik

Owners widely praise the Sternglas Naos XL Automatik as an amazing value and a budget-friendly Bauhaus automatic watch that never feels underwhelming. The dial is noted as interesting enough for regular wear, and the watch is considered solid for business casual. One owner finds the 42mm case size can appear too large, resembling a "flying saucer" on a 7.25-inch wrist, and another notes the Miyota movement is just okay. Overall, owners rate the Sternglas Naos XL Automatik highly for its exceptional value and Bauhaus design at its price point.

Orient Bambino Open Heart

Owners widely report the Orient Bambino Open Heart offers good value, with some appreciating its dressy style and sunburst dial. One owner notes the movement can be noisy and the stock strap feels less premium. The 40.5mm case size is generally considered wearable, though lug width can complicate strap changes. Overall, owners find the Orient Bambino Open Heart to be a good value proposition for its price point, particularly for its aesthetic appeal.

From video reviewers

The open-heart dial revealing the balance wheel is a standout feature, typically seen on higher-priced watches. No shared weaknesses were identified.