Cal. 400 nickel-finished lever movement 31 jewels the engine-turned black details with applied Roman numerals three subsidiary dials indicating constant seconds 30 minutes and 12 hours registers eccentric window for date to 1 oclock in large circular case with stepped coin-edged bezel sapphire-set crown downturned lugs glazed back two oval chronograph buttons in the band platinum Parmigiani buckle case dial and movement signed