Fathers AeternavsIWC Schaffhausen Iw503701/Iw503702 Portugieser Perpetual Calendar
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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.

Aeterna

Iw503701/Iw503702 Portugieser Perpetual Calendar
Diameter
38mm
44.4mm
Lug-to-Lug
46.7mm
n/a
Thickness
10.5mm
lowest
15mm
Water Resistance
100m
highest
50m
Power Reserve
42h
168h
highest
MSRP
$762
lowest
$56,800
Movement
Landeron F100
52616
Case
7 specsCrystal & Dial
1 specsMovement
7 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely appreciate the Fathers Orologio Small Seconds Automatico Swiss Made as a great value Swiss watch that dresses down nicely. Some find the dial's asymmetry satisfying, though others suggest the hour/minute sub-dials could be larger, and one owner personally could do without the sub-seconds dial. Overall, owners rate the Fathers Orologio Small Seconds Automatico Swiss Made highly for its value and versatile styling.
The IWC Schaffhausen Portugieser is widely praised for its pure class, stunning design, and build quality, with its enduring, consistent design remaining a star feature. Some owners and reviewers express a desire for smaller case dimensions, with one commenter wishing for a 38mm size and another questioning why the 41mm case diameter was not reduced. Overall, owners and reviewers rate the IWC Schaffhausen Portugieser highly for its pure class and stunning design.
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