Omega
Seamaster Planet Ocean 600M Co-Axial Master Chronometer
215.30.44.21.01.001
600 metres of resolve in 43.5 mm of Master Chronometer steel.
An estimate from current market data — not an offer. Your actual value depends on condition, completeness, and authentication.
Get an instant offerFree insured shipping. Paid within 48 hours of inspection.
Overview
The Omega Seamaster Planet Ocean 600M Co-Axial Master Chronometer reference 215.30.44.21.01.001 is a professional-grade diver's watch rated to 600 metres of water resistance. Its 43.5 mm stainless steel case houses Calibre 8900, one of the first movements to earn METAS Master Chronometer certification, holding it to standards that exceed traditional COSC timekeeping requirements. The black dial and bold applied indices give the watch an immediately legible, purposeful character consistent with the Planet Ocean line's diving heritage.
History
The Planet Ocean collection was introduced in the mid-2000s as Omega's answer to the demand for a serious, large-cased professional diver within the Seamaster family. The 215-series references, including this example, arrived in 2016 alongside the rollout of Omega's in-house Master Chronometer movements, marking a significant technical evolution for the line. Calibre 8900 brought co-axial escapement technology, anti-magnetic resistance to 15,000 gauss, and METAS certification to the Planet Ocean for the first time. The reference has remained in production, cementing its place as a cornerstone of Omega's contemporary diver catalogue.
Notable points
- Calibre 8900 is certified by METAS as a Master Chronometer, meeting an eight-test standard that includes resistance to magnetic fields of 15,000 gauss.
- The co-axial escapement reduces friction in the gear train, contributing to longer service intervals compared with traditional lever escapements.
- A 600-metre water-resistance rating places this watch firmly in the professional diving category, well beyond recreational dive requirements.
- The 43.5 mm stainless steel case features a unidirectional rotating bezel with a ceramic insert, a hallmark of the Planet Ocean design language.
- The black dial variant is the most classically legible expression of the reference, with luminous applied hour markers and a date display at 3 o'clock.
Specifications
Related watches
