Lobner Berlin W9 German military chronograph wristwatch, single button chronograph with white dial Arabic numerals, blued hands, 2 subsidiary dials for seconds, 30 minutes, 1/5th second outer track, tachymeter track, Minerva 9CH hand wind movement no. 1484237, nickel silver case no. 412222, case back signed Rechlin 400248 Rechlin was the Luftwaffe's main testing ground for new aircraft designs in World War II on a leather band, case diam. 45 mm, working.