Movement: automatic, analogue display case made of stainless steel - diameter approx. 43 mm - approx. 12 mm height stainless steel strap (blue) with safety clasp. The sapphire glass of this watch is almost scratchable, even after years, the watch can be easily read. Waterproof tested up to 3 ATM test press. Mechanical automatic movement (Cal. NH38A with 24 stones) glass base