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.

Fathers Aeterna at true scale

Aeterna

IWC Schaffhausen Iw503701/Iw503702 Portugieser Perpetual Calendar at true scale

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 specs
Diameter
38mm
44.4mm
Thickness
10.5mm
15mm
Lug-to-Lug
46.7mm
n/a
Lug Width
19mm
22mm
Material
Stainless Steel
18 Ct Armor Gold\u00ae
Finish
n/a
18 ct Armor Gold\u00ae
Water Resistance
100m
50m

Crystal & Dial

1 specs
Dial Color
White
Black

Movement

7 specs
Caliber
Landeron F100
52616
Beat Rate
0 vph
28,800 vph
Power Reserve
42h
168h
Jewels
0
54
Hacking
No
Yes
Hand-winding
No
Yes
Complications
None
Perpetual Calendar

Pricing

1 specs
MSRP
$762
$56,800
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Reviews

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

Fathers Aeterna

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.

IWC Schaffhausen Iw503701/Iw503702 Portugieser Perpetual Calendar

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.