Hamilton Jazzmaster Seaview Auto ChronovsIWC Schaffhausen Portugieser Grande Complication

Owners report a wide range of timekeeping accuracy, with one user noting a deviation of approximately +15 seconds per day after seven years of wear, which improved to +/- 4 seconds per day after servicing. Another owner praises the Hamilton Jazzmaster Seaview Auto Chrono for its sapphire bezel, clean dial, and mixed polished/brushed finishing. On balance, owners find the Hamilton Jazzmaster Seaview Auto Chrono aesthetically pleasing with good finishing, though one user questioned its value proposition at retail price.

Owners widely praise the IWC Schaffhausen Iw377601 Portugieser Grande Complication's impressive complications, including a 400-year calendar and a highly accurate moon phase. The watch is frequently described as a grail piece, with many admiring its technical complexity and elegant yet tough appearance. Some owners specifically highlight IWC's raised indices as superior. However, a few find the dial appears plasticky, and some users note the watch looks large on the wrist, with one owner deeming it feminine and disliking the lug design. Setting the perpetual calendar is also noted as complex. Overall, owners rate the IWC Schaffhausen Iw377601 Portugieser Grande Complication highly for its remarkable complications and grail-worthy appeal.