Airain Watches Sous-MarinevsBremont S302

The Airain Watches Sous-Marine reissue is noted for its faithful recreation of the original, featuring a brushed 316L stainless steel case and a sapphire crystal. It is powered by the La Joux-Perret G100 automatic movement, offering a 68-hour power reserve. The watch includes a Parmentier crown and is available with either a DNA-strand or Lollipop seconds hand. On balance, reviewers highlight the Airain Watches Sous-Marine's authentic vintage design and robust movement as key strengths.

The Bremont S302 is widely praised for its balanced 40mm proportions and legible matte dial, featuring attractive tan accents. Reviewers note its satisfying bezel action and comfortable lug design, with one owner highlighting its scratch-resistant case as a true tool watch feature. However, some find the GMT bezel's integration a compromise and note potential alignment issues with the GMT hand and bezel that may require service. The watch is priced at £3,700 / over $4,000, with some considering its ETA movement high for the cost compared to competitors. On balance, owners and reviewers appreciate the Bremont S302 for its handsome, functional dive GMT design and wearability, despite some reservations about its GMT functionality and value proposition.