Side by side

Sternglas Naos Pro GMT AutomatikvsTornek-Rayville TR-660 Sapphire Non-date

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
TR-660 Sapphire Non-date
Tornek-RayvilleTR-660 Sapphire Non-date

At a glance

12 of 29 specs differ
Diameter
Naos Pro GMT Automatik38mm
TR-660 Sapphire Non-date40mm
Power Reserve
Naos Pro GMT Automatik42h
TR-660 Sapphire Non-date50h
Water Resistance
Naos Pro GMT Automatik50m
TR-660 Sapphire Non-date200m
MSRP
Naos Pro GMT Automatik$863
TR-660 Sapphire Non-date

Full specifications

Case

5 specs
Category
GMT
Diver
Diameter
38mm
40mm
Thickness
11mm
14.7mm
Lug-to-Lug
42mm
48.5mm
Water Resistance
50m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Black
Lume
Luminova Punkte
Superluminova

Movement

3 specs
Caliber
Miyota 9075
TMI NH38
Power Reserve
42h
50h
Jewels
25

Pricing

1 specs
MSRP
$863

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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.

Tornek-Rayville TR-660 Sapphire Non-date

Owners widely praise the Tornek-Rayville TR-660 for its quality, good timekeeping, and suitability as a military diver reissue. The 40mm bead-blasted 316L stainless steel case, sapphire bezel inlay, and Arclite Super LumiNova are noted features, powered by a Japanese TMI NH38 automatic movement and water-resistant to 20 ATMs. Some owners suggest alternatives due to availability issues with the small-batch releases. Overall, owners rate the Tornek-Rayville TR-660 highly for its faithful reissue design and quality build at its price point.

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