Grand Seiko Evolution 9 White Birch SLGH005 vs Omega Planet Ocean 600M GMT 232.30.44.22.03.001

SpecificationGrand Seiko Evolution 9 White Birch SLGH005Omega Planet Ocean 600M GMT 232.30.44.22.03.001
BrandGrand SeikoOmega
CollectionEvolution 9Seamaster
ReferenceSLGH005232.30.44.22.03.001
CategoryDressGMT
Movement TypeAutomaticAutomatic
CaliberGrand Seiko 9SA5Omega 8906
Power Reserve80h60h
Frequency36,000 vph25,200 vph
Case Diameter40.0mm43.5mm
Case Thickness11.7mm16.3mm
Case MaterialStainless SteelStainless Steel
CrystalSapphire with anti-reflective coatingSapphire
Water Resistance100m / 328ft600m / 1969ft
Weight152g195g
MSRP$8,400$8,400
Market Price$7,800$7,500

In-Depth Comparison

The Grand Seiko Evolution 9 White Birch SLGH005 and the Omega Planet Ocean 600M GMT 232.30.44.22.03.001 represent two compelling options in the luxury watch market. Both timepieces have earned devoted followings among collectors and enthusiasts, but they approach horology from distinctly different perspectives. Let's break down how these two watches compare across the key dimensions that matter most to buyers.

Heritage And Brand Prestige

Grand Seiko and Omega are both highly respected names in watchmaking. The Grand Seiko Evolution 9 White Birch SLGH005 comes from Japan, while the Omega Planet Ocean 600M GMT 232.30.44.22.03.001 originates from Switzerland. This particular Evolution 9 reference was introduced in 2021, while this Seamaster reference debuted in 2016. The Grand Seiko Evolution 9 White Birch SLGH005 is the newer release, potentially featuring more modern technology and finishing.

Movement And Mechanics

At the heart of the Grand Seiko Evolution 9 White Birch SLGH005 beats the Grand Seiko 9SA5 caliber offering a 80-hour power reserve running at 36,000 vph with 47 jewels. The Omega Planet Ocean 600M GMT 232.30.44.22.03.001 is powered by the Omega 8906 with a 60-hour power reserve operating at 25,200 vph featuring 39 jewels. The Grand Seiko Evolution 9 White Birch SLGH005 wins on power reserve with a 20-hour advantage, which means less frequent winding for those who rotate watches.

Dimensions And Wearability

The Grand Seiko Evolution 9 White Birch SLGH005 features a 40.0mm case at 11.7mm thick with a 47.0mm lug-to-lug measurement, crafted in Stainless Steel. The Omega Planet Ocean 600M GMT 232.30.44.22.03.001 comes in at 43.5mm and 16.3mm thick with 50.0mm lug-to-lug, constructed from Stainless Steel. The Grand Seiko Evolution 9 White Birch SLGH005 wears more compactly on the wrist, making it potentially more suitable for smaller wrists or those who prefer understated proportions. At 152g, the Grand Seiko Evolution 9 White Birch SLGH005 is the lighter of the two.

Materials And Construction

The Grand Seiko Evolution 9 White Birch SLGH005 uses a Sapphire with anti-reflective coating crystal paired with a Fixed polished bezel, while the Omega Planet Ocean 600M GMT 232.30.44.22.03.001 features Sapphire crystal with a Unidirectional rotating blue bezel. On the wrist, the Grand Seiko Evolution 9 White Birch SLGH005 comes on a Stainless steel bracelet with Three-fold clasp with push button release, while the Omega Planet Ocean 600M GMT 232.30.44.22.03.001 is fitted with Stainless steel bracelet featuring Fold-over clasp with extender.

Water Resistance And Capability

The Grand Seiko Evolution 9 White Birch SLGH005 is rated to 100m / 328ft and the Omega Planet Ocean 600M GMT 232.30.44.22.03.001 to 600m / 1969ft. For water sports and diving, the Omega Planet Ocean 600M GMT 232.30.44.22.03.001 provides superior depth capability.

Pricing And Value

At retail, the Grand Seiko Evolution 9 White Birch SLGH005 lists for $8,400 compared to $8,400 for the Omega Planet Ocean 600M GMT 232.30.44.22.03.001. On the secondary market, the Grand Seiko Evolution 9 White Birch SLGH005 trades around $7,800 while the Omega Planet Ocean 600M GMT 232.30.44.22.03.001 commands approximately $7,500.

The Verdict

Choosing between the Grand Seiko Evolution 9 White Birch SLGH005 and the Omega Planet Ocean 600M GMT 232.30.44.22.03.001 ultimately comes down to personal priorities. For diving and water sports, the Omega Planet Ocean 600M GMT 232.30.44.22.03.001 is the stronger choice. for dress occasions and smaller wrists, the Grand Seiko Evolution 9 White Birch SLGH005 is more versatile. Both watches are exceptional timepieces that will serve their owner well for generations. We recommend trying both on the wrist at an authorized dealer before making your final decision, as comfort and emotional connection are ultimately just as important as specifications.