The storm slim x xl is a classic looking watch with a smart minimalist dial the ultra slim strap is made from black ion plated stainless steel with a contrasting black dial the slim x is waterproof to 50m with a date featurer r specificationr r features slim watch date curved glassr movement japaneser battery standard typer case material stainless steelr case size w 40mm l 48mmr case height 75mmr water resistance 50mr lens material mineral glassr caseback stainless steelr crown