Atlantic WORLDMASTER ORIGINAL Type: Men’s Antishock system: Antichoc Movement: Hand wound, Swiss Made, 21 Jewels, UNITAS 6300 (N) Case type: Chromed Dial colour: Black Crystal: Acrylic glass Strap colour: Brown, 19 mm Case width without the crown: 38 mm Case thickness: 11 mm This watch is from the 1970s. The watch has an extremely precise Swiss UNITAS 6300(N) movement on 21 Jewels. It shows time well. Chromed case. Steel screw back, logged 61001. Signed and sharp crown. Black dial complete with original gilded indicators - it looks excellent. The watch is fitted with a brown strap, 19 mm, length 240 mm. The watch looks nice. Please see the photos which are part of the description. I am selling the watch without a box. The watch will be professionally packaged and shipped with a tracking number.