Supermarine 300MThe new Supermarine 300m and 300m Date models have been entirely redesigned and now feature a new, sleeker and slimmer profile case shape crafted in 904L steel to maximise robustness and comfort in unison. This new symmetrical case silhouette includes both crown and bezel guards, ensuring practical operation whilst increasing durability and safety by preventing accidental adjustment or damage through shocks or knocks. The anodised aluminium knurled