The Limited Edition ‘Bremont Waterman’. Bremont has worked closely with the world renowned free-diver, adventurer, big-wave surfer and ocean environmentalist, Mark Healey, in testing the new Supermarine 500 sapphire crystal case back technology. Limited to 300 pieces, the beautifully engineered new Bremont Waterman incorporates a GMT hand and features deep-blue applied indexes on the dial. The Bremont Waterman uses the core S500 watch architecture as chosen by multiple military units and explorers all over the world. The open sapphire backed 500m water resistant case, helium release valve, anti-shock vibration mount and scratch resistant sapphire uni-directional bezel make it a watch that can be tested to extremes.