Side by side

IWC Schaffhausen Iw459403 Portofino Automatic Moon PhasevsSugess MoonPhase Master SU2528

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.

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.

Sugess MoonPhase Master SU2528

Owners widely praise the Sugess MoonPhase Master SU2528 for its visually stunning and glittery aventurine dial, considered exceptional value for its price, with some noting smooth hand-winding and good case polishing. Accuracy varies, with reports ranging from +3 seconds per day to -6 seconds per day, and one owner experienced a stuttering movement in a previous unit. Some find the watch too thick for a dress watch, the rotor unusually loud, and the 21mm lug width unorthodox, while the moonphase complication's accuracy is questioned by one owner due to a potential dial cut flaw. Overall, owners rate the Sugess MoonPhase Master SU2528 highly for its gorgeous aventurine dial and impressive complications at an accessible price point.

At a glance

17 of 29 specs differ
Diameter
Iw459403 Portofino Automatic Moon Phase40mm
MoonPhase Master SU252840mm
Power Reserve
Iw459403 Portofino Automatic Moon Phase50h
MoonPhase Master SU252848h
Water Resistance
Iw459403 Portofino Automatic Moon Phase30m
MoonPhase Master SU25285m
MSRP
Iw459403 Portofino Automatic Moon Phase$7,700
MoonPhase Master SU2528$599

Full specifications

Case

6 specs
Thickness
11.1mm
13.5mm
Lug-to-Lug
46mm
Material
Stainless Steel
Stainless Steel/Rose Gold
Finish
18 ct 5N gold
Brushed and polished
Water Resistance
30m
5m
Caseback
Display

Crystal & Dial

6 specs
Crystal
Sapphire
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Silver
Black
Indices
Applied
Lume
None
X1

Movement

4 specs
Caliber
35800
ST2528
Beat Rate
28,800 vph
3 vph
Power Reserve
50h
48h
Complications
Moonphase
Moonphase, Date

Pricing

1 specs
MSRP
$7,700
$599
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