Comparing the IWC Portugieser Automatic ($7k–$8k, 30m WR, 40mm) against the Omega Aqua Terra 38 ($5k–$6k, 150m WR, 38mm) — specs, movement, community votes, and an expert verdict below. The Omega Aqua Terra 38 is the more affordable option by $2k.

Our Verdict

Too Close to Call

Both the IWC Portugieser Automatic and Omega Aqua Terra 38 are excellent choices — the winner depends on your priorities, budget, and style preference.

IWC Portugieser AutomaticvsOmega Aqua Terra 38

Complete head-to-head comparison

👁️Better legibility
IWC Portugieser Automatic official product image

IWC

Portugieser Automatic

Ref. IW358303

New Price

$7k–$8k

Pre-owned: $6k–$7k

Case40mm Stainless Steel
Thickness10.8mm
Movementautomatic
Water Resistance30m
No reviews yet
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Omega Aqua Terra 38 official product image

Omega

Aqua Terra 38

Ref. 220.10.38.20.03.001

New Price

$5k–$6k

Pre-owned: $4k–$5k

Case38mm Stainless Steel
Thickness11.1mm
Movementautomatic
Water Resistance150m
No reviews yet
View Full Specs →
PriceAqua Terra 38 cheaper
H2OAqua Terra 38 (150m)
ScorePortugieser Automatic (8/10)
RepurchasePortugieser Automatic (80%)

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Quick Verdict

Both sit in a similar price range: IWC Portugieser Automatic at $7k–$8k vs Omega Aqua Terra 38 at $5k–$6k — choose based on use case and style preference. Omega Aqua Terra 38 edges ahead on water resistance: 150m vs 30m. Case size: IWC Portugieser Automatic at 40mm suits larger wrists; Omega Aqua Terra 38 at 38mm is the more compact option.

Portugieser AutomaticInternet Community RatingAqua Terra 38
50%50%
🗳️WatchVsWatch Community Vote
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Pros & Cons

IWC Portugieser Automatic

Pros

  • 60-hour power reserve
  • In-house automatic movement
  • Sapphire crystal
  • Durable stainless steel case

Cons

  • Limited water resistance (30m)

Omega Aqua Terra 38

Pros

  • Reliable automatic movement
  • Sapphire crystal
  • Durable stainless steel case

Specifications Compared

Portugieser Automatic
Aqua Terra 38
Case Diameter
Portugieser Automatic
40mm
Aqua Terra 38
38mm
Case Thickness
Portugieser Automatic
10.8mm
Aqua Terra 38
11.1mm
Lug Width
Portugieser Automatic
20mm
Aqua Terra 38
18mm
Lug-to-Lug
Portugieser Automatic
47mm
Aqua Terra 38
45mm
Movement
Portugieser Automatic
automatic
Aqua Terra 38
automatic
Caliber
Portugieser Automatic
Cal. 82100
Aqua Terra 38
Cal. 8900
Power Reserve
Portugieser Automatic
60h
Aqua Terra 38
55h
Water Resistance
Portugieser Automatic
30m
Aqua Terra 38
150m
Crystal
Portugieser Automatic
sapphire
Aqua Terra 38
sapphire
Case Material
Portugieser Automatic
Stainless Steel
Aqua Terra 38
Stainless Steel
Bracelet/Strap
Portugieser Automatic
Alligator leather
Aqua Terra 38
Stainless Steel
Price (New)
Portugieser Automatic
$7k–$8k
Aqua Terra 38
$5k–$6k
Price (Pre-owned)
Portugieser Automatic
$6k–$7k
Aqua Terra 38
$4k–$5k
Style
Portugieser Automatic
dress, luxury
Aqua Terra 38
dress, sport, casual

Frequently Asked Questions

Which is better: IWC Portugieser Automatic or Omega Aqua Terra 38?

Both are excellent watches with different strengths. The IWC Portugieser Automatic offers a larger case and costs more new. The Omega Aqua Terra 38 excels in water resistance. The best choice depends on your wrist size, budget, and preferred aesthetic.

What's the price difference?

The IWC Portugieser Automatic retails for $7k–$8k, while the Omega Aqua Terra 38 is priced at $5k–$6k. Pre-owned, expect $6k–$7k and $4k–$5k respectively. Actual secondary market prices vary based on condition and demand.

How do the case sizes compare?

The IWC Portugieser Automatic has a 40mm case diameter with 10.8mm thickness, while the Omega Aqua Terra 38 measures 38mm × 11.1mm. Both have lug-to-lug measurements of 47mm and 45mm respectively. Consider your wrist size and wear style when deciding.

Which has better water resistance?

The IWC Portugieser Automatic is water-resistant to 30m, while the Omega Aqua Terra 38 offers 150m. 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.

How do the movements compare?

The IWC Portugieser Automatic uses a automatic Cal. 82100 with 60 hours power reserve. The Omega Aqua Terra 38 features a automatic Cal. 8900 with 55 hours power reserve. Both offer traditional mechanical craftsmanship.

Which holds value better?

IWC and Omega both command strong secondary markets. Pre-owned pricing shows an estimated resale value of $6k–$7k for the Portugieser Automatic and $4k–$5k for the Aqua Terra 38. Condition, service history, and box/papers significantly impact resale value for both models.

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