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Omega Seamaster 300 Spectre vs Rolex GMT-Master II

Ref. 233.30.41.21.01.001 vs Ref. 116710BLNR

Comparing the Rolex GMT-Master II to the Omega Seamaster 300 Spectre means weighing a significant price difference — is the premium justified? At ~$8,500 (market value) versus ~$18,000 (market value), 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 300 Spectre

RetailDiscontinued
Market Avg$8,500
Market Range$7,000 $10,000
Premium+30.8%
Flip Score6/10 – Good

Rolex

GMT-Master II

RetailDiscontinued
Market Avg$18,000
Market Range$16,000 $20,000
Premium+85.6%
Flip Score9/10 – Exceptional

The Omega Seamaster 300 Spectre is priced at ~$8,500 (market value) while the Rolex GMT-Master II comes in at ~$18,000 (market value). On the secondary market, the gap widens: the Omega Seamaster 300 Spectre trades around $8,500 and the Rolex GMT-Master II around $18,000, a difference of $9,500 favoring the Omega Seamaster 300 Spectre. This watch trades at 31% above retail on the secondary market and is trending upward — a strong indicator of collector demand. The Rolex GMT-Master II commands an even stronger market premium of +85.6%, with upward momentum. For investors, the Rolex GMT-Master II edges ahead with a flip potential score of 9/10 compared to 6/10.

Specifications

SpecificationOmega Seamaster 300 SpectreRolex GMT-Master II
Case Diameter41mm40mm
Case Thickness14.35mm13.0mm
Case MaterialStainless steelOystersteel
BezelBlack and grey bidirectional rotating bezel with 12-hour scaleCerachrom (ceramic) in black and blue
CrystalDomed sapphire crystal with anti-reflective treatmentSapphire with Cyclops lens
Water Resistance300m / 1000ft100m / 330ft
MovementOmega Co-Axial Master Chronometer calibre 8400Rolex calibre 3186
Movement TypeAutomaticAutomatic
Power Reserve60 hours48 hours
Bracelet/StrapStainless steel bracelet with NATO strap includedOyster, three-piece solid links
ClaspAdjustable claspOysterclasp with Easylink 5mm comfort extension
Lug Width20mm20mm

Key specification differences stand out between these two: The Omega Seamaster 300 Spectre leads in water resistance (300m / 1000ft vs. 100m / 330ft), and the Omega Seamaster 300 Spectre offers longer power reserve at 60 hours, and the Omega Seamaster 300 Spectre uses Stainless steel while the Rolex GMT-Master II opts for Oystersteel. 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 300 Spectre costs $207 versus $450 for the Rolex GMT-Master II. For water resistance, the Omega Seamaster 300 Spectre delivers better value per meter of depth rating. The Omega Seamaster 300 Spectre offers more power reserve per dollar spent.

Which Should You Buy?

Choose the Omega Seamaster 300 Spectre if you value serious diving capabilities. Go with the Rolex GMT-Master II if you prioritize stronger flip potential, better value retention. For pure investment potential, the Rolex GMT-Master II has the edge based on current market data.

Frequently Asked Questions

Which is more affordable, the Omega Seamaster 300 Spectre or the Rolex GMT-Master II?

The Omega Seamaster 300 Spectre is more accessible, priced at ~$8,500 (market value) compared to ~$18,000 (market value).

Which watch is a better investment?

Based on current market data, the Rolex GMT-Master II has a higher flip potential score of 9/10, suggesting stronger investment returns. However, watch values can fluctuate based on market conditions.

Which holds its value better on the secondary market?

The Rolex GMT-Master II currently trades at 85.6% above retail, indicating strong value retention on the pre-owned market.

How do the Omega Seamaster 300 Spectre and Rolex GMT-Master II compare in size?

The Omega Seamaster 300 Spectre measures 41mm in diameter and 14.35mm thick, while the Rolex GMT-Master II is 40mm by 13.0mm. Water resistance differs too: 300m / 1000ft versus 100m / 330ft.

What movements do these watches use?

The Omega Seamaster 300 Spectre uses the Omega Co-Axial Master Chronometer calibre 8400 with 60 hours power reserve, while the Rolex GMT-Master II runs on the Rolex calibre 3186 offering 48 hours of power reserve.

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