Longines Master Collection 40 vs IWC Pilot's Watch Mark XVIII

Both are excellent watches with different strengths. The Longines Master Collection 40 offers comparable sizing and costs less new. The IWC Pilot's Watch Mark XVIII excels in water resistance. The best choice depends on your wrist size, budget, and preferred aesthetic.

The Longines Master Collection 40 retails for $2k–$2k, while the IWC Pilot's Watch Mark XVIII is priced at $4k–$5k. Pre-owned, expect $1k–$2k and $3k–$4k respectively. Actual secondary market prices vary based on condition and demand.

The Longines Master Collection 40 has a 40mm case diameter with 10mm thickness, while the IWC Pilot's Watch Mark XVIII 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 Longines Master Collection 40 is water-resistant to 30m, while the IWC Pilot's Watch Mark XVIII offers 60m. 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 Longines Master Collection 40 uses a automatic L899 with 64 hours power reserve. The IWC Pilot's Watch Mark XVIII features a automatic Cal. 30110 with 42 hours power reserve. Both offer traditional mechanical craftsmanship.

Longines and IWC both command strong secondary markets. Pre-owned pricing shows an estimated resale value of $1k–$2k for the Master Collection 40 and $3k–$4k for the Pilot's Watch Mark XVIII. Condition, service history, and box/papers significantly impact resale value for both models.