IWC Schaffhausen IWC Portofino AutomaticvsSeiko Diamond Collection

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

IWC Schaffhausen IWC Portofino Automatic at true scale

IWC Portofino Automatic

Seiko Diamond Collection at true scale

Diamond Collection

Diameter

34mm

30mm

Lug-to-Lug

n/a

36.5mm

Thickness

8.6mm

6.3mm

lowest

Water Resistance

30m

50m

highest

Power Reserve

50h

n/a

MSRP

$5,500

$525

lowest

Movement

35100

Seiko 7N01

Case

6 specs
Diameter
34mm
30mm
Thickness
8.6mm
6.3mm
Lug-to-Lug
n/a
36.5mm
Lug Width
16mm
5mm
Finish
Steel
n/a
Water Resistance
30m
50m

Crystal & Dial

2 specs
Crystal
n/a
Sapphire
Dial Color
Green
n/a

Movement

7 specs
Caliber
35100
Seiko 7N01
Type
Automatic
Quartz
Beat Rate
28,800 vph
0 vph
Power Reserve
50h
0h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$5,500
$525
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Reviews

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

IWC Schaffhausen IWC Portofino Automatic

Owners praise the IWC Schaffhausen Portofino Automatic for its clean, classic dress watch aesthetic, with specific mentions of appealing dial colors and elegant gold hands and indices that complement a blue dial. Its thin, ergonomic wearability is noted as sliding well under shirt cuffs, and one owner finds the 34mm case size perfect for smaller wrists. The watch is reported to keep excellent time, with one user mentioning IWC maintains chronometer standards internally. However, some find its use of an external movement and its price tag to be a poor value proposition compared to alternatives, with one commenter criticizing it as a mass-produced watch lacking refinement at its price point. One owner reported that dropping their watch caused it to stop working, requiring a two-month repair. Overall, owners rate the IWC Schaffhausen Portofino Automatic highly for its elegant design and comfortable wearability on smaller wrists.

Seiko Diamond Collection

Owners widely praise the Seiko Diamond Collection for its stunning beauty, featuring 14 diamonds, a mother-of-pearl dial, and a two-tone color scheme. The watch is described as lightweight and offers excellent fit and finish, especially when purchased on sale, with some noting its Pasha-esque design. One owner finds the Seiko SRZ536 durable and accurate. The consensus is that owners rate the Seiko Diamond Collection highly for its dazzling aesthetics and perceived value.