IWC Schaffhausen Iw659602 Portofino Automatic Moon PhasevsLongines PrimaLuna Moonphase
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
Owners + reviewers, side by side
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the IWC Schaffhausen Portofino for its simple elegance and classic, detail-oriented design, with many appreciating its 37.1mm case size as ideal for smaller wrists or for those accustomed to larger timepieces. Some owners describe it as a "lifetime watch" that is "truly stunning IRL" and a classy option that "flies under the radar." One owner noted their Portofino Automatic stopped working after being dropped and required a two-month repair from IWC. On balance, owners and reviewers rate the IWC Schaffhausen Portofino highly for its elegant aesthetic and comfortable wearability.
The Longines PrimaLuna Moonphase features a fluid case design and a 72-hour power reserve from its automatic movement. Owners note its accuracy averages 1.3 seconds lost per day across six positions, and 3 to 4 seconds on the wrist, performing within COSC standards. Previously, moon phase models utilized quartz movements, a detail that may not appeal to mechanical watch enthusiasts. Overall, owners rate the Longines PrimaLuna Moonphase highly for its updated automatic movement and reliable timekeeping.
At a glance
19 of 29 specs differFull specifications
Case
7 specsCrystal & Dial
4 specsMovement
7 specsPricing
1 specsMore watches worth a look
Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.
Follow this matchup
Get a note when IWC Schaffhausen Iw659602 Portofino Automatic Moon Phase vs Longines PrimaLuna Moonphase gets more votes, a community discussion, or a price drop. No account needed.
People also compared
Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.









