Which is bigger, the Sternglas Naos Pro Automatik or the Tornek-Rayville TR-660 Sapphire Non-date?

The Tornek-Rayville TR-660 Sapphire Non-date wears larger at 40mm versus 38mm for the Sternglas Naos Pro Automatik — a 2mm difference across the dial.

Which has better water resistance, the Sternglas Naos Pro Automatik or the Tornek-Rayville TR-660 Sapphire Non-date?

The Tornek-Rayville TR-660 Sapphire Non-date is rated to 200m versus 50m for the Sternglas Naos Pro Automatik.

Which has a longer power reserve, the Sternglas Naos Pro Automatik or the Tornek-Rayville TR-660 Sapphire Non-date?

The Tornek-Rayville TR-660 Sapphire Non-date carries a 50-hour power reserve against 42 hours on the Sternglas Naos Pro Automatik.

What movement does the Sternglas Naos Pro Automatik run compared to the Tornek-Rayville TR-660 Sapphire Non-date?

Both watches run automatic movements — the Sternglas Naos Pro Automatik uses the Miyota 9015 and the Tornek-Rayville TR-660 Sapphire Non-date uses the TMI NH38.

Side by side

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

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

Sternglas Naos Pro Automatik

naos-pro-automatik-alabaster

MSRP $755

Tornek-Rayville TR-660 Sapphire Non-date

tr-660-w-sapphire-inlay-1201-non-date-3167895

At a glance

12 of 29 specs differ

Diameter

Naos Pro Automatik38mm

TR-660 Sapphire Non-date40mm

Power Reserve

Naos Pro Automatik42h

TR-660 Sapphire Non-date50h

Water Resistance

Naos Pro Automatik50m

TR-660 Sapphire Non-date200m

MSRP

Naos Pro Automatik$755

TR-660 Sapphire Non-date—

Full specifications

Case

5 specs

Crystal & Dial

3 specs

AR Coating

Inner

Yes

Dial Color

—

Black

Lume

Luminova Punkte

Superluminova

Movement

3 specs

Caliber

Miyota 9015

TMI NH38

Power Reserve

42h

50h

Jewels

—

Pricing

1 specs

MSRP

$755

—

Follow this matchup

Get a note when Sternglas Naos Pro Automatik vs Tornek-Rayville TR-660 Sapphire Non-date 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 Automatik

The Sternglas Naos Pro Automatik is praised for its slim 9mm case and Bauhaus dial design, featuring clear hour markers and a framed date window. Owners note the upgraded Miyota 9015 movement with a 4Hz beat rate. Accuracy is reported as -10/+30 seconds per day, which is not ideal for precision enthusiasts. The five-link bracelet's lack of fitted end-links and the optional bracelet's chunkiness are flagged as areas lacking refinement. Overall, reviewers highlight the Sternglas Naos Pro Automatik's improved wearability and premium feel at its price point.

From video reviewers

The Bauhaus design is a strength. The value proposition is a weakness.

Fratello

Time + Tide

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.

WatchUSeek·3

Keep exploring