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IWC Schaffhausen Iw658601 Portofino AutomaticvsSternglas Naos Solar

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 Solar

Owners widely praise the Sternglas Naos Solar for its elegant Bauhaus-inspired minimalist dial, slim profile, and value for money. The scratch-resistant curved sapphire crystal and functional date mechanism are noted as durable features, with one owner reporting good wear over a year. The solar power and accuracy are highlighted as practical advantages over automatic movements, which some find loud. However, opinions are split, with some owners finding the watch underwhelming and cheap-looking, like a toy, while others love its appearance in person and its clean, appealing design as a smartwatch alternative. The stock leather strap is described as decent but basic and potentially short for larger wrists, with one owner advising a third-party replacement for durability. One owner of a different variant noted the date font is too small to be useful.

At a glance

17 of 29 specs differ
Diameter
Iw658601 Portofino Automatic37mm
Naos Solar38mm
Power Reserve
Iw658601 Portofino Automatic120h
Naos Solar
Water Resistance
Iw658601 Portofino Automatic50m
Naos Solar50m
MSRP
Iw658601 Portofino Automatic$16,300
Naos Solar$323

Full specifications

Case

7 specs
Diameter
37mm
38mm
Thickness
9.4mm
10mm
Lug-to-Lug
42mm
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 Punkten

Movement

4 specs
Caliber
32111
Seiko VJ76
Type
Automatic
Solar
Power Reserve
120h
Jewels
21

Pricing

1 specs
MSRP
$16,300
$323
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