wristwatch A. Lange & Sohne -> Richard Lange -> Richard Lange Richard Lange BrandA. Lange & Sohne SeriesRichard Lange TitleRichard Lange Country of originGermany Type of watchmen`s/gen`s case materialPlatinum case diameter40.5 mm Case thickness (mm)10.5 mm Hand WorksClockminutesecond handtransparent backWatches