IWC Pilot's Watch Mark XVIIIvsIWC Portugieser Automatic

Both are excellent watches with different strengths. The IWC Pilot's Watch Mark XVIII offers comparable sizing and costs less new. The IWC Portugieser Automatic excels in overall construction. The best choice depends on your wrist size, budget, and preferred aesthetic.

The IWC Pilot's Watch Mark XVIII retails for $4k–$5k, while the IWC Portugieser Automatic is priced at $7k–$8k. Pre-owned, expect $3k–$4k and $6k–$7k respectively. Actual secondary market prices vary based on condition and demand.

The IWC Pilot's Watch Mark XVIII has a 40mm case diameter with 10.8mm thickness, while the IWC Portugieser Automatic measures 40mm × 10.8mm. Both have lug-to-lug measurements of 47mm and 47mm respectively. Consider your wrist size and wear style when deciding.

The IWC Pilot's Watch Mark XVIII is water-resistant to 60m, while the IWC Portugieser Automatic offers 30m. Both are suitable for swimming and snorkeling at their respective depths. For professional diving, verify the rating exceeds 300m and includes a screw-down crown.

The IWC Pilot's Watch Mark XVIII uses a automatic Cal. 30110 with 42 hours power reserve. The IWC Portugieser Automatic features a automatic Cal. 82100 with 60 hours power reserve. Both offer traditional mechanical craftsmanship.

IWC and IWC both command strong secondary markets. Pre-owned pricing shows an estimated resale value of $3k–$4k for the Pilot's Watch Mark XVIII and $6k–$7k for the Portugieser Automatic. Condition, service history, and box/papers significantly impact resale value for both models.