TW Steel ACE414 ACE Diver Chronograaf limited edition 44mm Lady G Shock has represented shock resistance G Shock has represented shock resistance built into the entire construction Since 1904 The TW Steel ACE Diver Chronograph limited edition brings this together in a round 44 mm stainless steel case with a black dial Its 30 bar water resistance elevates this model far above the level of an average splash proof watch