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Omega Speedmaster Moonwatch Professional vs Tudor Black Bay S&G

Ref. 310.30.42.50.01.001 vs Ref. M79733N-0007

The Omega Speedmaster Moonwatch Professional (chronograph) and Tudor Black Bay S&G (dive watch) represent different approaches to luxury watchmaking. While the Omega Speedmaster Moonwatch Professional is priced at $7,100 and the Tudor Black Bay S&G at $5,475, both offer compelling value propositions. This comparison examines their specifications, market positioning, and investment potential side by side.

Price Comparison

Omega

Speedmaster Moonwatch Professional

Retail$7,100
Market Avg$6,200
Market Range$5,500 $6,900
Premium-12.7%
Flip Score2/10 – Below Average

Tudor

Black Bay S&G

Retail$5,475
Market Avg$4,928
Market Range$4,337 $5,519
Premium-10.0%
Flip Score2/10 – Below Average

At retail, the Omega Speedmaster Moonwatch Professional is listed at $7,100 while the Tudor Black Bay S&G comes in at $5,475. The Tudor Black Bay S&G saves you $1,625 (30% less), a meaningful difference for most buyers. On the secondary market, the gap narrows: the Omega Speedmaster Moonwatch Professional trades around $6,200 and the Tudor Black Bay S&G around $4,928, a difference of $1,272 favoring the Tudor Black Bay S&G. Available at 13% below retail and trending downward, this represents a buying opportunity for those comfortable with the current market position. The Tudor Black Bay S&G commands an even stronger market premium of -10.0%, holding steady. Both watches score equally on flip potential at 2/10, making neither a clear investment winner over the other.

Specifications

SpecificationOmega Speedmaster Moonwatch ProfessionalTudor Black Bay S&G
Case Diameter42mm41mm
Case Thickness13.18mm12.7mm
Case MaterialStainless steelStainless steel and yellow gold
BezelAnodized aluminium bezel ring with tachymetre scaleUnidirectional rotating bezel with anodized aluminium insert in black
CrystalHesalite crystalDomed sapphire crystal
Water Resistance50m / 167ft200m / 660ft
MovementOmega Co-Axial Master Chronometer calibre 3861Tudor Calibre MT5612
Movement TypeManual-windingAutomatic
Power Reserve50 hours70 hours
Bracelet/StrapStainless steel braceletStainless steel and yellow gold with riveted-style links
ClaspAdjustable claspFolding clasp with safety catch
Lug Width20mm22mm

Key specification differences stand out between these two: The Tudor Black Bay S&G leads in water resistance (200m / 660ft vs. 50m / 167ft), and the Tudor Black Bay S&G offers longer power reserve at 70 hours, and the Omega Speedmaster Moonwatch Professional uses Stainless steel while the Tudor Black Bay S&G opts for Stainless steel and yellow 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 Moonwatch Professional costs $148 versus $120 for the Tudor Black Bay S&G. For water resistance, the Tudor Black Bay S&G delivers better value per meter of depth rating. The Tudor Black Bay S&G offers more power reserve per dollar spent.

Which Should You Buy?

Choose the Omega Speedmaster Moonwatch Professional if you value timing functionality. Go with the Tudor Black Bay S&G if you prioritize a lower entry price, better value retention, serious diving capabilities.

Frequently Asked Questions

Which is more affordable, the Omega Speedmaster Moonwatch Professional or the Tudor Black Bay S&G?

The Tudor Black Bay S&G is more accessible, priced at $5,475 compared to $7,100.

Which holds its value better on the secondary market?

The Tudor Black Bay S&G currently trades at 10.0% below retail, indicating moderate value retention on the pre-owned market.

How do the Omega Speedmaster Moonwatch Professional and Tudor Black Bay S&G compare in size?

The Omega Speedmaster Moonwatch Professional measures 42mm in diameter and 13.18mm thick, while the Tudor Black Bay S&G is 41mm by 12.7mm. Water resistance differs too: 50m / 167ft versus 200m / 660ft.

What movements do these watches use?

The Omega Speedmaster Moonwatch Professional uses the Omega Co-Axial Master Chronometer calibre 3861 with 50 hours power reserve, while the Tudor Black Bay S&G runs on the Tudor Calibre MT5612 offering 70 hours of power reserve.

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