Omega Seamaster Planet Ocean Seamaster Planet Ocean 600M Co-Axial 45.5 Stainless Steel / Diamond / Black / Alligator
Reference 232.18.46.21.01.001
About this watch
The Omega Seamaster Planet Ocean 232.18.46.21.01.001 is a statement piece that combines craftsmanship, durability, and luxury in one timepiece. The 45.5mm stainless steel case feels solid and luxurious on the wrist, while the black dial with mixed indexes offers striking contrast and readability. The gem-set bezel adds opulence, making this watch perfect for both diving expeditions and formal events. At its core is the Omega Caliber 8500 movement, a marvel of engineering with a Co-Axial escapement that reduces friction and enhances accuracy. With a water resistance rating of 600 meters, this watch is designed for serious divers who demand precision and reliability. The alligator leather strap adds sophistication and comfort, while the deployment clasp ensures security. This timepiece is an investment in both style and reliability, perfect for those willing to invest in a piece of art that tells a story.
Key Features
- Omega Caliber 8500 movement with Co-Axial escapement
- 600m water resistance rating
- 45.5mm stainless steel case
- Black dial with mixed indexes and gem-set bezel
- Alligator leather strap with deployment clasp
- Chronometer certification for precision timekeeping
- Sapphire crystal for durability
Specifications
- Brand
- Omega
- Family
- Seamaster Planet Ocean
- Model
- Seamaster Planet Ocean 600M Co-Axial 45.5 Stainless Steel / Diamond / Black / Alligator
- Reference
- 232.18.46.21.01.001
- Movement
- 8500
- Movement Features
-
- Hours, Minutes, Seconds
- Date
- Chronometer, Co-Axial Escapement
- Case
- Stainless Steel 45.5mm
- Dial Color
- Black
- Crystal
- Sapphire
- Water Resistance
- 600
Current Listings

Pre-Owned Omega Seamaster Planet Ocean Ultra Deep 215.30.46.21.04.001
The Omega Seamaster Planet Ocean Ultra Deep is a pre-owned watch in excellent condition, featuring an automatic movement and a white dial. It has a 46mm O-MEGASTEEL case and is water-resistant to 6,000 meters.
- Condition: 94% condition, with faint marks on the sides and back of the case, and a few links of the bracelet
- Case size: 46mm diameter
- Material: O-MEGASTEEL
- Dial color: White
![[WTS] Omega Seamaster Planet Ocean Orange 42mm 2209.50.00](https://preview.redd.it/hmr89y761y6f1.jpeg?auto=webp&s=0117ff99c54ac71462e565df589bbe3eda62fda6)
Omega Seamaster Planet Ocean Orange 42mm 2209.50.00
This Omega Seamaster Planet Ocean Orange is a 42mm stainless steel watch with an orange bezel insert and black dial featuring luminous markers and hands. It has an Omega Caliber 2500 Co-Axial Automatic movement and a water resistance of 600m.
- Condition: Excellent (minor signs of careful wear)
- Case Size: 42mm
- Water Resistance: 600m / 2000ft
- Movement: Omega Caliber 2500 Co-Axial Automatic

Pre-Owned Omega Seamaster Planet Ocean Ultra Deep 215.30.46.21.04.001
Pre-Owned Omega Seamaster Planet Ocean Ultra Deep, a 46mm automatic watch with a white dial and 6,000m water resistance.
- Condition: 94% (with faint marks on the sides and back of the case)
- Case size: 46mm
- Material: O-MEGASTEEL
- Dial color: White
![[WTS] Omega Seamaster Planet Ocean Chronograph 45.5mm Titanium 215.92.46.51.99.001!](https://external-preview.redd.it/BZbPAu_qksUtSEISLBNkRow6h-Uchb_kKJ1bvZgvlxY.jpeg?auto=webp&s=5ae6831647d78151c6c65f2432d5ec9790a884e6)
Omega Seamaster Planet Ocean Chronograph 45.5mm Titanium 215.92.46.51.99.001!
A 45.5mm Omega Seamaster Planet Ocean Chronograph in titanium, featuring a grey dial and unidirectional rotating bezel.
- Condition: Excellent pre-owned condition with typical cosmetic wear on the case and clasp
- Case diameter: 45.5mm
- Water resistance: 600 Meters depth rating
Omega Seamaster Planet Ocean 2201.50, fresh Omega Service, $3795 USD shipped CONUS only.
The Omega Seamaster Planet Ocean 2201.50 is a high-end dive watch featuring a 42mm diameter case and 20mm lugs. It boasts an impressive 600m water resistance and a fresh Omega service.
- Condition: Excellent, with scratches in the AR coating of the crystal
- Bracelet condition: Excellent
- Water resistance: 600m
Omega Seamaster Planet Ocean 2201.50, fresh Omega Service, $3595 USD shipped CONUS only.
A Planet Ocean 2201.50, a 42mm diameter watch with 600m water resistance and excellent condition except for minor scratches on the crystal.
- Condition: Excellent with scratches in the AR coating of the crystal
- Dimensions: 42mm diameter
- Lugs: 20mm
- Bracelet condition: Excellent (no stretch)
![[WTS] Omega Seamaster Planet Ocean 2200.50](https://external-preview.redd.it/fFMdMPJjn3_R_oEb7_vU9su4-sCjwr5t6AVYC1D6cEQ.jpeg?auto=webp&s=46f01d73ce9268ce3f7651487d57fd8632fe9ef8)
Omega Seamaster Planet Ocean 2200.50
A Omega Seamaster Planet Ocean in good condition, available for sale as watch only.
- Condition: great condition with light scratches on crystal and bracelet
- Payment Methods Accepted: crypto, cash, etc (except PayPal)
- Trading Interested Brands: Tudor, Cartier, Rolex, Breitling, AP
![[WTS] New 2025 Omega Seamaster Planet Ocean Ultra Deep 6000M Titanium 215.92.46.21.01.001](https://external-preview.redd.it/aSiMwm9TsQPdOnWr9QYE4vE--hmpdxSQIHV6CeAD6OE.jpg?auto=webp&s=0f57bf081a66d0b3cd285ad2209714ac09142bf6)
New 2025 Omega Seamaster Planet Ocean Ultra Deep 6000M Titanium 215.92.46.21.01.001
The watch being listed is a brand new Omega Seamaster Planet Ocean Ultra Deep 6000M Titanium model, featuring a sand blasted Grade 5 Titanium case and brushed black ceramic bezel. It has an automatic movement with 60-hour reserve and 6000M water resistance.
- Condition: 10/10, unworn, new
- Case Size: 45.5mm
- Movement: 8912
- Crystal Type: Domed Sapphire Crystal
Omega Seamaster Planet Ocean 600M | 2024 | Titanium | Full Set | OBO | 215.90.44.21.99.001| Warranty 2029
The Omega Seamaster Planet Ocean 600M is a titanium watch with a 43.5mm diameter, brushed grey ceramic unidirectional bezel, and sandblasted grade 5 titanium dial.
- Condition: Used but in excellent condition
- Case material: Grade 5 titanium
- Diameter: 43.5mm
- Thickness: ~16.1mm