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IWC Schaffhausen Iw658601 Portofino AutomaticvsGrand Seiko SBGY002

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

Iw658601 Portofino Automatic
IWC SchaffhausenIw658601 Portofino Automatic
MSRP $16,300
SBGY002
Grand SeikoSBGY002
MSRP $30,000
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.

Grand Seiko SBGY002

Owners and reviewers widely praise the Grand Seiko SBGY002 for its impeccable design, finishing, and attention to detail, highlighting its slender 38.5mm case and thin profile for comfortable wear. The Spring Drive movement, calibre 9R31, is noted for its accuracy within one second per day and a 72-hour power reserve, with one owner appreciating the movement's finishing and the watch's overall class and simplicity, preferring the power reserve indicator on the case back. The Snowflake dial's appearance changes with light, often appearing less yellow than expected, and a matte blue strap can make the SBGY002 more casual for daily wear, complementing the seconds hand. The Grand Seiko SBGY002 is considered a home run for its combination of iconic dial and dress case, though its yellow gold construction and price point position it differently than steel alternatives.

At a glance

17 of 29 specs differ
Diameter
Iw658601 Portofino Automatic37mm
SBGY00238.5mm
Power Reserve
Iw658601 Portofino Automatic120h
SBGY00272h
Water Resistance
Iw658601 Portofino Automatic50m
SBGY00230m
MSRP
Iw658601 Portofino Automatic$16,300
SBGY002$30,000

Full specifications

Case

8 specs
Diameter
37mm
38.5mm
Thickness
9.4mm
10.2mm
Lug-to-Lug
43.7mm
Lug Width
18mm
19mm
Material
18 Ct 5N Gold
Gold
Finish
Steel
Brushed and polished
Water Resistance
50m
30m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Yes
Dial Color
Silver
Black
Indices
Applied

Movement

4 specs
Caliber
32111
9R31
Type
Automatic
Spring Drive
Power Reserve
120h
72h
Jewels
21
25

Pricing

1 specs
MSRP
$16,300
$30,000
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