Here is an exclusive vintage Hamilton World Timer 8984 Quartz watch that's not often seen, featuring a contrasting white and black inner ring that moves to indicate night or day of your current time. This particular model has a black dial and a white outer ring with different cities of the world that is activated by the left crown. Simply set the hands to your current time by using the right crown which will also rotate the small inner 24 hour ring simultaneously. Then wind the left crown to rotate the position of any city to its corresponding 24 hour indicator on the inner ring. For instance, if you are currently in Los Angeles and it is 10:00 a.m., Set the hands to 10:00 then line the Los Angeles dot of the outer ring to the number 10 on the white side of the inner ring. A quick glance at the New York dot would show that its position is at number 13 on the white side inner ring indication a time of 1:00 p.m. This is a beautiful watch that shows only light scratches on the case as well as some faint scratches on the crystal. The dial is in excellent condition with dots and roman numerals intact. The bruguet hour hand makes is easy to tell time whenever both hands overlap and the minute and sweeping second hands are all in superb condition. This watch is all stainless steel and signed Hamilton on the dial and inside/outside case. Powering this watch is an unadjusted ETA 955.232 quartz movement with 7 jewels that includes a brand new Renata 399 battery. M379 7737. Brand new BIO Comfort straps in black are included with this fine wristwatch. The inside of the snap back reads Hamilton Watch Co., Case made in Thailand. This watch measures approximately 38mm in width (excluding both crowns) x 42mm from lug end to lug end.