Omega Seamaster Planet Ocean 600M GMT | 43mm Steel | Black Dial

A Legacy Forged Beneath the Waves

The Seamaster name traces a lineage of purpose-built dive watches back to the 1957 Seamaster 300; the Planet Ocean builds on that legacy with modern materials, robust construction and uncompromising underwater credentials. Designed for demanding conditions, this 43mm GMT iteration combines deep-water performance with the practicality of a dual-time complication for explorers who traverse oceans and time zones.

The Specifications of a True Dive Instrument

• Reference Number: 215.33.44.22.01.001
• Water Resistance: 600 m / 2000 ft
• Helium Escape Valve: Yes — engineered for saturation diving and prolonged submersion
• Unidirectional Rotating Bezel with Ceramic Insert: Durable, fade-resistant black ceramic for critical dive timing
• Co‑Axial Master Chronometer Calibre: Automatic GMT movement delivering stable timekeeping and performance
• Case Diameter: 43 mm (Stainless Steel)
• Bracelet/Strap: Black Alligator Leather with robust deployant clasp
• GMT Function: Dedicated 24‑hour hand for tracking a second time zone
• Includes: Box and Papers

The Curator's Insight:
The conical helium escape valve and thick 600 m case are more than styling cues — they are purposeful engineering that speak to Omega's no‑compromise approach to building instruments that will keep working when the environment pushes them to the limit.

A Tool You Can Trust with Your Life

This Planet Ocean 600M GMT is a modern professional dive watch that refuses to sacrifice utility for looks; its combination of deep-water capability, GMT practicality and a ceramic bezel makes it equally at home on a wet dive deck or in transit between time zones. For collectors in search of a rugged, technically minded Seamaster, this reference represents Omega’s commitment to authenticity and performance.

This Watch is Ideal For...

• Professional or serious recreational divers who demand real-world credentials
• Travellers and professionals who value a reliable GMT function alongside dive capability
• Collectors seeking a substantive, historically rooted Omega that performs under pressure