
Cartier
Santos de Cartier
Ref. WSSA0018
$8k–$8k
Pre-owned: $6k–$8k
Complete head-to-head comparison
Featured ComparisonComparing the Cartier Santos de Cartier ($8k–$8k, 100m WR, 39.8mm) against the Omega Aqua Terra 38 ($5k–$6k, 150m WR, 38mm). The Omega Aqua Terra 38 is the more affordable option by $2k.

Cartier
Ref. WSSA0018
$8k–$8k
Pre-owned: $6k–$8k

Omega
Ref. 220.10.38.20.03.001
$5k–$6k
Pre-owned: $4k–$5k
Price
Water Resistance
Score
Repurchase
Pros
Cons
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Community Verdict
Too Close to Call
Both sit in a similar price range: Cartier Santos de Cartier at $8k–$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 100m.
Both are excellent watches with different strengths. The Cartier Santos de Cartier 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.
The Cartier Santos de Cartier retails for $8k–$8k, while the Omega Aqua Terra 38 is priced at $5k–$6k. Pre-owned, expect $6k–$8k and $4k–$5k respectively. Actual secondary market prices vary based on condition and demand.
The Cartier Santos de Cartier has a 39.8mm case diameter with 9.08mm thickness, while the Omega Aqua Terra 38 measures 38mm × 11.1mm. Both have lug-to-lug measurements of 48mm and 45mm respectively. Consider your wrist size and wear style when deciding.
The Cartier Santos de Cartier is water-resistant to 100m, 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.
The Cartier Santos de Cartier uses a automatic Cal. 1847 MC with 40 hours power reserve. The Omega Aqua Terra 38 features a automatic Cal. 8900 with 55 hours power reserve. Both offer traditional mechanical craftsmanship.
Cartier and Omega both command strong secondary markets. Pre-owned pricing shows an estimated resale value of $6k–$8k for the Santos de Cartier 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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