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

Tissot's design language vs Omega's approach

The Tissot PRX Powermatic 80 features a 316L Stainless Steel case at 40mm with Scratch-resistant Sapphire protection. The Omega Constellation Co-Axial 38mm (18k red gold) offers 18k red gold construction at 38mm with Sapphire Crystal, sapphire exhibition caseback. Both represent their brand's distinct design philosophy and heritage.

Automatic Powermatic 80.111 vs Automatic, Omega Co-Axial Calibre 8501

The PRX Powermatic 80 runs the Automatic Powermatic 80.111 (In-House Automatic (ETA C07.111 base), 80 Hours power reserve) at 21,600 vph (3 Hz) frequency. The Constellation Co-Axial 38mm (18k red gold) uses the Automatic, Omega Co-Axial Calibre 8501 (Omega 8501, Co-Axial escapement, silicon balance spring, chronometer-certified, 60 hours reserve) at standard. The PRX Powermatic 80 edges ahead on power reserve.

40mm vs 38mm — different wrist presence

At 40mm, the PRX Powermatic 80 has a bolder wrist presence compared to the Constellation Co-Axial 38mm (18k red gold) at 38mm. Water resistance differs: 100m (10 ATM) vs 100m (10 ATM).

Tissot sits in the lower tier

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

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

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