So here we have a stainless steel Longines Ultra Chron from 1973. The archives show that this watch was delivered to Hong Kong in 1974. The blue dial has many shades, depending on the lighting. The watch comes on it's original bracelet, which is pictured on my 7.1 inch wrist, fitting kind of loose. I have no other links, and it will fit up to a 7.25 inch wrist. The chronometer grade movement was serviced about 6 months ago, and keeps great time. Case measures about 34mm in diameter, not including the crown. Lug width is 18mm. Everything appears original and in good condition. I'm asking $600 USD or best offer. Returns accepted if not as described upon arrival.