IWC Portofino Automatic Moon Phase vs Omega Speedmaster Moonwatch Professional Green Dial

SpecificationIWC Portofino Automatic Moon PhaseOmega Speedmaster Moonwatch Professional Green Dial
BrandIWCOmega
CollectionPortofinoSpeedmaster
ReferenceIW459401310.30.42.50.04.001
CategoryMoonphaseChronograph
Movement TypeAutomaticManual
Caliber35800Omega 3861
Power Reserve120h50h
Frequency28,800 vph21,600 vph
Case Diameter40.0mm42.0mm
Case Thickness11.0mm13.2mm
Case MaterialStainless SteelStainless Steel
CrystalSapphireSapphire with anti-reflective coating
Water Resistance50m / 164ft50m / 164ft
Weight75g143g
MSRP$7,200$7,100
Market Price$5,500$6,500

In-Depth Comparison

The IWC Portofino Automatic Moon Phase and the Omega Speedmaster Moonwatch Professional Green Dial represent two compelling options in the luxury watch market. Both timepieces have earned devoted followings among collectors and enthusiasts, but they approach horology from distinctly different perspectives. Let's break down how these two watches compare across the key dimensions that matter most to buyers.

Heritage And Brand Prestige

IWC and Omega are both highly respected names in watchmaking. Both watches hail from Switzerland, benefiting from the region's deep horological tradition. This particular Portofino reference was introduced in 2018, while this Speedmaster reference debuted in 2023. The Omega Speedmaster Moonwatch Professional Green Dial is the newer release, potentially featuring more modern technology and finishing.

Movement And Mechanics

At the heart of the IWC Portofino Automatic Moon Phase beats the 35800 caliber offering a 120-hour power reserve running at 28,800 vph with 27 jewels. The Omega Speedmaster Moonwatch Professional Green Dial is powered by the Omega 3861 with a 50-hour power reserve operating at 21,600 vph featuring 26 jewels. The IWC Portofino Automatic Moon Phase wins on power reserve with a 70-hour advantage, which means less frequent winding for those who rotate watches.

Dimensions And Wearability

The IWC Portofino Automatic Moon Phase features a 40.0mm case at 11.0mm thick with a 47.5mm lug-to-lug measurement, crafted in Stainless Steel. The Omega Speedmaster Moonwatch Professional Green Dial comes in at 42.0mm and 13.2mm thick with 47.0mm lug-to-lug, constructed from Stainless Steel. The IWC Portofino Automatic Moon Phase wears more compactly on the wrist, making it potentially more suitable for smaller wrists or those who prefer understated proportions. At 75g, the IWC Portofino Automatic Moon Phase is the lighter of the two.

Materials And Construction

The IWC Portofino Automatic Moon Phase uses a Sapphire crystal paired with a Fixed, polished bezel, while the Omega Speedmaster Moonwatch Professional Green Dial features Sapphire with anti-reflective coating crystal with a Fixed, green ceramic tachymeter with white enamel bezel. On the wrist, the IWC Portofino Automatic Moon Phase comes on a Blue alligator leather strap with Folding clasp, while the Omega Speedmaster Moonwatch Professional Green Dial is fitted with Stainless steel bracelet featuring Deployant clasp with pushers.

Water Resistance And Capability

The IWC Portofino Automatic Moon Phase is rated to 50m / 164ft and the Omega Speedmaster Moonwatch Professional Green Dial to 50m / 164ft. Both watches share the same water resistance rating, making them equally suited for aquatic activities.

Pricing And Value

At retail, the IWC Portofino Automatic Moon Phase lists for $7,200 compared to $7,100 for the Omega Speedmaster Moonwatch Professional Green Dial. On the secondary market, the IWC Portofino Automatic Moon Phase trades around $5,500 while the Omega Speedmaster Moonwatch Professional Green Dial commands approximately $6,500.

The Verdict

Choosing between the IWC Portofino Automatic Moon Phase and the Omega Speedmaster Moonwatch Professional Green Dial ultimately comes down to personal priorities. For dress occasions and smaller wrists, the IWC Portofino Automatic Moon Phase is more versatile. Both watches are exceptional timepieces that will serve their owner well for generations. We recommend trying both on the wrist at an authorized dealer before making your final decision, as comfort and emotional connection are ultimately just as important as specifications.