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Omega Seamaster Planet Ocean Ultra Deep vs Tudor Pelagos

Ref. 215.30.46.21.01.001 vs Ref. M25600TN-0001

Comparing the Tudor Pelagos to the Omega Seamaster Planet Ocean Ultra Deep means weighing a significant price difference — is the premium justified? At $11,400 versus $5,600, 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

Seamaster Planet Ocean Ultra Deep

Retail$11,400
Market Avg$9,120
Market Range$8,026 $10,214
Premium-20.0%
Flip Score2/10 – Below Average

Tudor

Pelagos

Retail$5,600
Market Avg$4,400
Market Range$4,000 $4,800
Premium-21.4%
Flip Score2/10 – Below Average

At retail, the Omega Seamaster Planet Ocean Ultra Deep is listed at $11,400 while the Tudor Pelagos comes in at $5,600. The Tudor Pelagos comes in at $5,800 less — more than half the price difference — making it a significantly more accessible option. On the secondary market, the gap narrows: the Omega Seamaster Planet Ocean Ultra Deep trades around $9,120 and the Tudor Pelagos around $4,400, a difference of $4,720 favoring the Tudor Pelagos. Available at 20% below retail and trending downward, this represents a buying opportunity for those comfortable with the current market position. The Tudor Pelagos shows a more modest market premium of -21.4%, though currently trending downward. Both watches score equally on flip potential at 2/10, making neither a clear investment winner over the other.

Specifications

SpecificationOmega Seamaster Planet Ocean Ultra DeepTudor Pelagos
Case Diameter45.5mm42mm
Case Thickness18.12mm14.3mm
Case MaterialStainless steel (O-MEGASTEEL)Titanium
BezelBlack ceramic unidirectional rotating bezel with liquidmetal diving scaleUnidirectional rotating bezel with ceramic insert in black
CrystalSapphire crystal with anti-reflective treatmentSapphire crystal
Water Resistance6000m / 19685ft500m / 1640ft
MovementOmega Co-Axial Master Chronometer calibre 8912Tudor Calibre MT5612
Movement TypeAutomaticAutomatic
Power Reserve55 hours70 hours
Bracelet/StrapStainless steel bracelet (O-MEGASTEEL)Titanium with self-adjusting clasp
ClaspFolding clasp with diver extensionFolding clasp with spring-loaded self-adjusting mechanism
Lug Width22mm22mm

Key specification differences stand out between these two: The Omega Seamaster Planet Ocean Ultra Deep leads in water resistance (6000m / 19685ft vs. 500m / 1640ft), and the Tudor Pelagos offers longer power reserve at 70 hours, and the Omega Seamaster Planet Ocean Ultra Deep uses Stainless steel (O-MEGASTEEL) while the Tudor Pelagos opts for Titanium. 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 Seamaster Planet Ocean Ultra Deep costs $200 versus $105 for the Tudor Pelagos. For water resistance, the Omega Seamaster Planet Ocean Ultra Deep delivers better value per meter of depth rating. The Tudor Pelagos offers more power reserve per dollar spent.

Which Should You Buy?

Choose the Omega Seamaster Planet Ocean Ultra Deep if you value better value retention, serious diving capabilities. Go with the Tudor Pelagos if you prioritize a lower entry price, serious diving capabilities.

Frequently Asked Questions

Which is more affordable, the Omega Seamaster Planet Ocean Ultra Deep or the Tudor Pelagos?

The Tudor Pelagos is more accessible, priced at $5,600 compared to $11,400.

Which holds its value better on the secondary market?

The Omega Seamaster Planet Ocean Ultra Deep currently trades at 20.0% below retail, indicating moderate value retention on the pre-owned market.

How do the Omega Seamaster Planet Ocean Ultra Deep and Tudor Pelagos compare in size?

The Omega Seamaster Planet Ocean Ultra Deep measures 45.5mm in diameter and 18.12mm thick, while the Tudor Pelagos is 42mm by 14.3mm. Water resistance differs too: 6000m / 19685ft versus 500m / 1640ft.

What movements do these watches use?

The Omega Seamaster Planet Ocean Ultra Deep uses the Omega Co-Axial Master Chronometer calibre 8912 with 55 hours power reserve, while the Tudor Pelagos runs on the Tudor Calibre MT5612 offering 70 hours of power reserve.

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