Constellation Co-Axial Master Chronometer 36mm.
Steel on steel.
Reference 131.10.36.20.06.001.

Movement :
Calibre: Omega 8800.
Self-winding movement with Co-Axial escapement.
Certified Master Chronometer, approved by METAS.
Resistant to magnetic fields reaching 15,000 gauss.
Free sprung-balance with silicon balance spring.
Automatic winding in both directions.
Rhodium plated finish with Geneva waves in arabesque.
Power reserve: 55 hours.

Crystal :
Domed scratch-resistant sapphire crystal with antireflective treatment on both sides.

Case and dial :
Case: Steel.
Case diameter: 36 mm.
Dial colour: Grey.

Water resistance :
5 bar (50 metres / 167 feet).

Features :
Anti-magnetic.
Chronometer.
Date.
Master Chronometer Certified.
Transparent case back.