I think the classic watch rivalry or head-to-head comparison is between the Rolex Submariner and the Omega Seamaster. If you're doing any sort of brand comparisons, these two are the ones people mention most.
Then there are the other product levels:
Here's a few off the top of my head:
Then there are the other product levels:
- Rolex Datejust vs Omega AquaTerra vs Zenith Defy
- IWC vs Breguet
- Omega Speedmaster vs Breitling Chronomat
Here's a few off the top of my head:
- Rolex Submariner vs Seiko 62Mas
- Rolex Explorer vs Grand Seiko SBGX261
- Rolex GMT Master vs Grand Seiko Spring Drive GMT SBGE257
- Tudor Pelagos?
- IWC Pilot?
- IWC Perpetual Calendar?
- JLC Reverso?