Omega Constellation Co-Axial 38mm (18k red gold) vs Tissot Chemin des Tourelles Powermatic 80

Omega's design language vs Tissot's approach

The Omega Constellation Co-Axial 38mm (18k red gold) features a 18k red gold case at 38mm with Sapphire Crystal, sapphire exhibition caseback protection. The Tissot Chemin des Tourelles Powermatic 80 offers Stainless Steel construction at 42.0mm with Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.

Automatic, Omega Co-Axial Calibre 8501 vs Automatic Powermatic 80 (Caliber 80.111)

The Constellation Co-Axial 38mm (18k red gold) runs the Automatic, Omega Co-Axial Calibre 8501 (Omega 8501, Co-Axial escapement, silicon balance spring, chronometer-certified, 60 hours power reserve) at standard frequency. The Chemin des Tourelles Powermatic 80 uses the Automatic Powermatic 80 (Caliber 80.111) (ETA/Tissot Automatic, 80 Hours reserve) at 21,600 vph (3 Hz). The Chemin des Tourelles Powermatic 80 offers a longer power reserve.

38mm vs 42.0mm — different wrist presence

At 38mm, the Constellation Co-Axial 38mm (18k red gold) wears more compactly on smaller wrists compared to the Chemin des Tourelles Powermatic 80 at 42.0mm. Water resistance differs: 100m (10 ATM) vs 50m (5 ATM).

Tissot sits in the lower tier

The Omega Constellation Co-Axial 38mm (18k red gold) sits at $25,000+ and the Tissot Chemin des Tourelles Powermatic 80 at $500–$1,000. On the specs that outlast any price: the Constellation Co-Axial 38mm (18k red gold) uses Sapphire Crystal, sapphire exhibition caseback with 60 hours, against Sapphire Crystal and 80 Hours on the Chemin des Tourelles Powermatic 80. Service intervals are typically 5-7 years for both.

100m (10 ATM) vs 50m (5 ATM)

The Constellation Co-Axial 38mm (18k red gold) is rated to 100m (10 ATM) while the Chemin des Tourelles Powermatic 80 handles 50m (5 ATM). The Constellation Co-Axial 38mm (18k red gold) is better suited for water activities.