Omega Constellation Co-Axial 38mm (18k red gold) vs Tissot Gentleman Powermatic 80 Silicium

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 Gentleman Powermatic 80 Silicium offers Stainless Steel construction at 40mm with Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.

Automatic, Omega Co-Axial Calibre 8501 vs Powermatic 80.811 (Silicon Hairspring)

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 Gentleman Powermatic 80 Silicium uses the Powermatic 80.811 (Silicon Hairspring) (ETA-Based Automatic with Silicon Hairspring, 80 Hours reserve) at 21,600 vph (3 Hz). The Gentleman Powermatic 80 Silicium offers a longer power reserve.

38mm vs 40mm — different wrist presence

At 38mm, the Constellation Co-Axial 38mm (18k red gold) wears more compactly on smaller wrists compared to the Gentleman Powermatic 80 Silicium at 40mm. Water resistance differs: 100m (10 ATM) vs 100m (10 ATM).

Tissot sits in the lower tier

The Omega Constellation Co-Axial 38mm (18k red gold) sits at $25,000+ and the Tissot Gentleman Powermatic 80 Silicium 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 Gentleman Powermatic 80 Silicium. Service intervals are typically 5-7 years for both.

100m (10 ATM) vs 100m (10 ATM)

The Constellation Co-Axial 38mm (18k red gold) is rated to 100m (10 ATM) while the Gentleman Powermatic 80 Silicium handles 100m (10 ATM). Both offer identical water resistance ratings.