
IWC
Portugieser 40
Ref. IW358303
$7k–$8k
Pre-owned: $6k–$7k
Complete head-to-head comparison
Comparing the IWC Portugieser 40 ($7k–$8k, 30m WR, 40mm) against the Omega Constellation 39 ($5k–$6k, 100m WR, 39mm). The Omega Constellation 39 is the more affordable option by $2k.

IWC
Ref. IW358303
$7k–$8k
Pre-owned: $6k–$7k

Omega
Ref. 131.10.39.20.01.001
$5k–$6k
Pre-owned: $4k–$5k
Price
Water Resistance
Score
Repurchase
Pros
Cons
Pros
Community Verdict
Too Close to Call
Both sit in a similar price range: IWC Portugieser 40 at $7k–$8k vs Omega Constellation 39 at $5k–$6k — choose based on use case and style preference. Omega Constellation 39 edges ahead on water resistance: 100m vs 30m.
Both are excellent watches with different strengths. The IWC Portugieser 40 offers a larger case and costs more new. The Omega Constellation 39 excels in water resistance. The best choice depends on your wrist size, budget, and preferred aesthetic.
The IWC Portugieser 40 retails for $7k–$8k, while the Omega Constellation 39 is priced at $5k–$6k. Pre-owned, expect $6k–$7k and $4k–$5k respectively. Actual secondary market prices vary based on condition and demand.
The IWC Portugieser 40 has a 40mm case diameter with 10.8mm thickness, while the Omega Constellation 39 measures 39mm × 11.5mm. Both have lug-to-lug measurements of 47mm and 46mm respectively. Consider your wrist size and wear style when deciding.
The IWC Portugieser 40 is water-resistant to 30m, while the Omega Constellation 39 offers 100m. 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 Portugieser 40 uses a automatic Cal. 82100 with 60 hours power reserve. The Omega Constellation 39 features a automatic Cal. 8800 with 55 hours power reserve. Both offer traditional mechanical craftsmanship.
IWC and Omega both command strong secondary markets. Pre-owned pricing shows an estimated resale value of $6k–$7k for the Portugieser 40 and $4k–$5k for the Constellation 39. Condition, service history, and box/papers significantly impact resale value for both models.
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