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IWC Schaffhausen Iw658601 Portofino AutomaticvsSternglas Naos Pro Automatik

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

What people say

Owners + reviewers, side by side

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

IWC Schaffhausen Iw658601 Portofino Automatic

Owners widely praise the IWC Schaffhausen Iw658601 Portofino Automatic's elegant, simple design and thin 9.4mm case, making it a versatile dress watch suitable for everyday wear. Its classical look, rounded bezel, and sunburst dial are frequently highlighted as attractive features. Some owners find the 37mm case size comfortable and appreciate its slim profile, contrary to perceptions of IWC watches being bulky. Accuracy reports vary, with one owner noting excellent timekeeping and another observing a loss of almost 10 seconds per day. The value proposition is debated, with some questioning the use of an external movement at its price point. On balance, owners and reviewers appreciate the IWC Schaffhausen Iw658601 Portofino Automatic for its classic dress watch aesthetic and wearability, though some debate its value.

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.

At a glance

16 of 29 specs differ
Diameter
Iw658601 Portofino Automatic37mm
Naos Pro Automatik38mm
Power Reserve
Iw658601 Portofino Automatic120h
Naos Pro Automatik42h
Water Resistance
Iw658601 Portofino Automatic50m
Naos Pro Automatik50m
MSRP
Iw658601 Portofino Automatic$16,300
Naos Pro Automatik$755

Full specifications

Case

7 specs
Diameter
37mm
38mm
Thickness
9.4mm
9mm
Lug-to-Lug
42.4mm
Lug Width
18mm
20mm
Material
18 Ct 5N Gold
Stainless Steel
Finish
Steel
Brushed and polished
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Silver
Indices
Applied
Lume
None
Luminova Punkte

Movement

3 specs
Caliber
32111
Miyota 9015
Power Reserve
120h
42h
Jewels
21

Pricing

1 specs
MSRP
$16,300
$755
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