£ 1550 $ 2092 | € 1798   A late 1930s Eterna Chronograph wristwatch. An evenly patinated dial, multiple detailed scales. An outer tachymetre scale to the outer edges, surrounding a split second/minute scale. A fantastic feature on this dial is the central 'snail' scale - a rare find. A 30 minute timer to 3 o'clock and a constant seco...