勞力士，罕有，不銹鋼自動上弦鏈帶腕錶，配兩地時間、中心秒針、日期顯示、黑色光面錶盤及護角錶冠，”GMT-Master”，型號1675，約1961年製 瑞郎5,000-8,000

The present watch is a fine example of an early GMT-Master ref. 1675 model, featuring an appealing black gloss dial, beautifully harmonizing with the gilt printing, and the pointed crown guards. Subsequently produced ref. 1675 models are fitted with the matte dial and show the rounded shoulders. For this reason, the present model is also known as the "Cornino" or "small horn" GMT Master.