Omega Speedmaster MoonwatchvsOmega Aqua Terra 38

Complete head-to-head comparison

Comparing the Omega Speedmaster Moonwatch ($7k–$7k, 50m WR, 42mm) against the Omega Aqua Terra 38 ($5k–$6k, 150m WR, 38mm). The Omega Aqua Terra 38 is the more affordable option by $2k.

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Omega Speedmaster Moonwatch official product image

Omega

Speedmaster Moonwatch

Ref. 310.30.42.50.01.001

$7k–$7k

Pre-owned: $6k–$7k

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Price

Speedmaster Moonwatch$7k–$7k
Aqua Terra 38$5k–$6k

Water Resistance

Speedmaster Moonwatch50m
Aqua Terra 38150m

Score

Speedmaster Moonwatch8/10
Aqua Terra 388/10

Repurchase

Speedmaster Moonwatch80%
Aqua Terra 3880%

Specifications Compared

Speedmaster Moonwatch
Aqua Terra 38
Case Diameter
Speedmaster Moonwatch
42mm
Aqua Terra 38
38mm
Case Thickness
Speedmaster Moonwatch
13.2mm
Aqua Terra 38
11.1mm
Lug Width
Speedmaster Moonwatch
21mm
Aqua Terra 38
18mm
Lug-to-Lug
Speedmaster Moonwatch
47mm
Aqua Terra 38
45mm
Movement
Speedmaster Moonwatch
manual
Aqua Terra 38
automatic
Caliber
Speedmaster Moonwatch
Cal. 3861
Aqua Terra 38
Cal. 8900
Power Reserve
Speedmaster Moonwatch
50h
Aqua Terra 38
55h
Water Resistance
Speedmaster Moonwatch
50m
Aqua Terra 38
150m
Crystal
Speedmaster Moonwatch
sapphire
Aqua Terra 38
sapphire
Case Material
Speedmaster Moonwatch
Stainless Steel
Aqua Terra 38
Stainless Steel
Bracelet/Strap
Speedmaster Moonwatch
Stainless Steel
Aqua Terra 38
Stainless Steel
Price (New)
Speedmaster Moonwatch
$7k–$7k
Aqua Terra 38
$5k–$6k
Price (Pre-owned)
Speedmaster Moonwatch
$6k–$7k
Aqua Terra 38
$4k–$5k
Style
Speedmaster Moonwatch
sport, casual
Aqua Terra 38
dress, sport, casual

Pros & Cons

Omega Speedmaster Moonwatch

Pros

  • Sapphire crystal
  • Durable stainless steel case

Cons

  • Limited water resistance

Omega Aqua Terra 38

Pros

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

Community Verdict

Too Close to Call

Both sit in a similar price range: Omega Speedmaster Moonwatch at $7k–$7k vs Omega Aqua Terra 38 at $5k–$6k — choose based on use case and style preference. Omega Speedmaster Moonwatch offers manual craftsmanship; Omega Aqua Terra 38 runs quartz for higher accuracy and lower maintenance. Omega Aqua Terra 38 edges ahead on water resistance: 150m vs 50m.

Speedmaster MoonwatchCommunity RatingAqua Terra 38
50%50%
🗳️Community Vote
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Community Ratings

Omega Speedmaster Moonwatch

Value for Money
4.0
Build Quality
5.0
Movement Reliability
5.0
Daily Wearability
3.0
Resale Strength
4.0

Omega Aqua Terra 38

No community ratings yet

Frequently Asked Questions

Which is better: Omega Speedmaster Moonwatch or Omega Aqua Terra 38?

Both are excellent watches with different strengths. The Omega Speedmaster Moonwatch 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 Omega Speedmaster Moonwatch retails for $7k–$7k, 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 Omega Speedmaster Moonwatch has a 42mm case diameter with 13.2mm 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 Omega Speedmaster Moonwatch is water-resistant to 50m, 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 Omega Speedmaster Moonwatch uses a manual Cal. 3861 with 50 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?

Omega and Omega both command strong secondary markets. Pre-owned pricing shows an estimated resale value of $6k–$7k for the Speedmaster Moonwatch 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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