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IWC Schaffhausen Iw658601 Portofino AutomaticvsSternglas Naos Großdatum

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 Großdatum

The Sternglas Naos Großdatum is praised for its Bauhaus aesthetic and value, with one owner finding it an affordable alternative to other designs. However, some owners report it feels underwhelming and cheap, with a printed-on face, small font, and toy-like hands, and find the strap to be of poor quality. The watch features a 38mm stainless steel case, an Alabaster dial with beige LumiNova, and a Seiko TMI VJ76 quartz movement rated for -20/+20 seconds per month. On balance, owners and reviewers are divided, with the primary point of contention being the perceived quality and aesthetic execution of the Sternglas Naos Großdatum.

At a glance

17 of 29 specs differ
Diameter
Iw658601 Portofino Automatic37mm
Naos Großdatum38mm
Power Reserve
Iw658601 Portofino Automatic120h
Naos Großdatum
Water Resistance
Iw658601 Portofino Automatic50m
Naos Großdatum50m
MSRP
Iw658601 Portofino Automatic$16,300
Naos Großdatum$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
Quartz
Power Reserve
120h
Jewels
21

Pricing

1 specs
MSRP
$16,300
$323
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