Side by side

Breitling Aviator 8 Automatic Day Date 41vsIWC Schaffhausen Iw459403 Portofino Automatic Moon Phase

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.

Breitling Aviator 8 Automatic Day Date 41

Owners widely praise the Breitling Aviator 8 Automatic Day Date 41 for its manageable 41mm case size, a welcome departure from larger traditional chronographs, and its simpler, less busy dial design. Reviewers and owners alike highlight its comfortable, slim profile, and the well-engineered, smooth rotating bezel that evokes aviation heritage. The watch is also noted for offering a day-date complication with a fully spelled-out day, a feature uncommon in its price range, and many find its vibrant lume and classic styling make it a great everyday watch. Accuracy is reported as excellent, with one owner noting regulation to within 2 seconds per day. On balance, owners and reviewers rate the Breitling Aviator 8 Automatic Day Date 41 highly for its practical size, refined dial, and compelling day-date complication.

IWC Schaffhausen Iw459403 Portofino Automatic Moon Phase

Owners widely praise the IWC Schaffhausen Portofino for its stunning and elegant design, with many finding the 40mm size wearability excellent, even on smaller wrists. The clean dial and classical sophistication are frequently highlighted, and some owners describe it as a "lifetime watch." One owner notes their watch keeps excellent time, with another mentioning IWC's commitment to chronometer standards. A different Portofino 37 variant was reported to lose almost 10 seconds a day. On balance, owners and reviewers rate the IWC Schaffhausen Portofino highly for its elegant design and comfortable wearability.

At a glance

13 of 29 specs differ
Diameter
Aviator 8 Automatic Day Date 4141mm
Iw459403 Portofino Automatic Moon Phase40mm
Power Reserve
Aviator 8 Automatic Day Date 4138h
Iw459403 Portofino Automatic Moon Phase50h
Water Resistance
Aviator 8 Automatic Day Date 41100m
Iw459403 Portofino Automatic Moon Phase30m
MSRP
Aviator 8 Automatic Day Date 41$4,750
Iw459403 Portofino Automatic Moon Phase$7,700

Full specifications

Case

5 specs
Category
Mechanical
Moonphase
Diameter
41mm
40mm
Thickness
11.19mm
11.1mm
Finish
Stainless steel
18 ct 5N gold
Water Resistance
100m
30m

Crystal & Dial

2 specs
Crystal
Sapphire
Dial Color
Silver

Movement

5 specs
Caliber
Breitling 45
35800
Beat Rate
0 vph
28,800 vph
Power Reserve
38h
50h
Jewels
0
25
Complications
Day-Date
Moonphase

Pricing

1 specs
MSRP
$4,750
$7,700
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