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Omega Speedmaster Professional Moonwatch vs Rolex Datejust 36

Ref. 311.30.42.30.01.005 vs Ref. M126234-0015

Comparing the Omega Speedmaster Professional Moonwatch to the Rolex Datejust 36 means weighing a significant price difference — is the premium justified? At ~$6,000 (market value) versus $10,550, these two watches serve different segments of the market. Here's how they stack up on specifications, value retention, and investment potential.

Price Comparison

Omega

Speedmaster Professional Moonwatch

RetailDiscontinued
Market Avg$6,000
Market Range$5,000 $7,000
Premium+0.8%
Flip Score4/10 – Moderate

Rolex

Datejust 36

Retail$10,550
Market Avg$9,500
Market Range$8,500 $10,500
Premium-10.0%
Flip Score3/10 – Moderate

The Omega Speedmaster Professional Moonwatch is priced at ~$6,000 (market value) while the Rolex Datejust 36 comes in at $10,550. On the secondary market, the gap narrows: the Omega Speedmaster Professional Moonwatch trades around $6,000 and the Rolex Datejust 36 around $9,500, a difference of $3,500 favoring the Omega Speedmaster Professional Moonwatch. Trading at 1% above retail and trending upward, this model holds its value well on the pre-owned market. The Rolex Datejust 36 shows a more modest market premium of -10.0%, holding steady. For investors, the Omega Speedmaster Professional Moonwatch edges ahead with a flip potential score of 4/10 compared to 3/10.

Specifications

SpecificationOmega Speedmaster Professional MoonwatchRolex Datejust 36
Case Diameter42mm36mm
Case Thickness14.3mm11.6mm
Case MaterialStainless steelOystersteel and 18ct white gold
BezelStainless steel bezel ring with tachymetre scale18ct white gold, fluted
CrystalHesalite crystal front, sapphire casebackSapphire with Cyclops lens
Water Resistance50m / 167ft100m / 330ft
MovementOmega calibre 1861Rolex calibre 3235
Movement TypeManual-windingAutomatic
Power Reserve48 hours70 hours
Bracelet/StrapStainless steel braceletJubilee, five-piece links
ClaspFolding claspOysterclasp with Easylink 5mm comfort extension
Lug Width20mm20mm

Key specification differences stand out between these two: The Rolex Datejust 36 leads in water resistance (100m / 330ft vs. 50m / 167ft), and the Rolex Datejust 36 offers longer power reserve at 70 hours, and the Omega Speedmaster Professional Moonwatch uses Stainless steel while the Rolex Datejust 36 opts for Oystersteel and 18ct white gold. With 8 notable spec differences in total, the choice depends on which features matter most to your use case.

Value Per Feature

Per millimeter of case diameter, the Omega Speedmaster Professional Moonwatch costs $143 versus $264 for the Rolex Datejust 36. For water resistance, the Rolex Datejust 36 delivers better value per meter of depth rating. The Omega Speedmaster Professional Moonwatch offers more power reserve per dollar spent.

Which Should You Buy?

Choose the Omega Speedmaster Professional Moonwatch if you value a lower entry price, stronger flip potential, better value retention. Go with the Rolex Datejust 36 if you prioritize the Rolex heritage. For pure investment potential, the Omega Speedmaster Professional Moonwatch has the edge based on current market data.

Frequently Asked Questions

Which is more affordable, the Omega Speedmaster Professional Moonwatch or the Rolex Datejust 36?

The Omega Speedmaster Professional Moonwatch is more accessible, priced at ~$6,000 (market value) compared to $10,550.

Which watch is a better investment?

Based on current market data, the Omega Speedmaster Professional Moonwatch has a higher flip potential score of 4/10, suggesting stronger investment returns. However, watch values can fluctuate based on market conditions.

Which holds its value better on the secondary market?

The Omega Speedmaster Professional Moonwatch currently trades at 0.8% above retail, indicating strong value retention on the pre-owned market.

How do the Omega Speedmaster Professional Moonwatch and Rolex Datejust 36 compare in size?

The Omega Speedmaster Professional Moonwatch measures 42mm in diameter and 14.3mm thick, while the Rolex Datejust 36 is 36mm by 11.6mm. Water resistance differs too: 50m / 167ft versus 100m / 330ft.

What movements do these watches use?

The Omega Speedmaster Professional Moonwatch uses the Omega calibre 1861 with 48 hours power reserve, while the Rolex Datejust 36 runs on the Rolex calibre 3235 offering 70 hours of power reserve.

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