Alpina, Rare Steel Single Button Chronograph, circa 1940's Case: 33 mm, staybrite steel, two body cushion shaped, 1382 Dial: two tone silver, Arabic numerals and rectangular markers, sub dials for the seconds and thirty minute register, blued steel baton hands Movement: nickel finished 17 jewel, manual winding, chronograph start/stop and reset functions from a button on the crown Band: leather, steel buckle Signed: Alpina on the dial and movement HID03101062020 © 2020 Heritage Auctions | All Rights Reserved