Seamaster Planet Ocean 600M 45.5 mm

The “Big Blue” is a combination GMT and divers' watch that delivers bold style and innovative design. The 45.5 mm case is made from blue ceramic, with a blue ceramic bezel featuring a Liquidmetal™ diving scale. A blend of orange rubber and ceramic covers the first 15 minutes. Orange rubber also colours the OMEGA logo on the crown and helium escape valve symbol.
The blue ceramic dial includes an orange GMT track, while the hands and indexes are in 18K white gold with a white Super-LumiNova coating. On the wave-edged caseback, there is a patented ceramic Naiad Lock that keeps the engraved wording in position.
The blue rubber strap includes orange stitching and lining as well as a ceramic foldover clasp. The watch is driven by the superb OMEGA Master Chronometer calibre 8906.

Features
Anti-magnetic: The movement is unaffected by exposure to strong magnetic fields, even those greater than 1.5 tesla (15,000 gauss).
Chronometer: Label given to a watch which has undergone precision tests and received a certificate from an official body (COSC).
Date: The day of the month, displayed in a window on a watch dial at the 3 or 6 o’clock position, or within a subdial at 9 o'clock.
GMT and Worldtimer: A GMT function means that the watch has a second hour hand which completes one full rotation in 24 hours and a 24-hour index on the dial. Particularly useful for wearers who wish to track two time zones.
Helium escape valve: Decompression system which allows helium to escape from inside the watch when the watch is worn for professional use in pressure chambers. (Long-term underwater work, crude oil exploration, etc.)
Master Chronometer Certified: Guaranteeing the Swiss industry’s highest standard of precision, performance and magnetic-resistance, as set by the Swiss Federal Institute of Metrology (METAS).
Screw-in crown: Self-locking crown, screwed into the tube of the case, used for highly water resistant divers' watches.
Time zone function: Allows the hour hand to be easily adjusted to different time zones without stopping the watch.
Transparent caseback: A transparent caseback - frequently made of sapphire - makes it possible to see the movement inside the watch.
Unidirectional rotating bezel: A bezel which turns in only one direction. Particularly useful for divers who cannot accidentally rotate it in the wrong direction, which could cause them to miscalculate their dive times. A rotating bezel makes it easy to measure elapsed time.

Technical Data
Reference: 215.92.46.22.03.001
Between lugs: 22 mm
Lug‑to‑lug: 51.5 mm
Thickness: 17.4 mm
Case diameter: 45.5 mm
Case: Blue ceramic
Dial colour: Blue
Crystal: Domed scratch‑resistant sapphire crystal with anti‑reflective treatment on both sides
Water resistance: 60 bar (600 metres / 2000 feet)
Total product weight (approx.): 141 g
Calibre: Omega 8906
Movement Type: Self winding
Power reserve: 60 hours

Strap
Strap color: Blue
Strap type: Rubber strap
Strap surface: Rubber
Strap underside: Rubber
Buckle type: Foldover clasp
Buckle material: Ceramic