Finding a vintage mechanical watch in a case that measures 38 mm or above (pretty much the starting size for a men’s modern wristwatch), is not an easy task. As you may already know, in the 1950s, 60s and 70s – men’s wristwatches were much smaller, and so finding a larger modern sized watch from that era — can be quite difficult. Especially if you want one in good working condition.

Today, we found just that: a 1970s Tissot Seastar Navigator Chronograph in a 40 mm stainless steel cushion case, and in good condition. It has a silver dial, with orange and red chronograph hands. Light blue paint marks the first 5-minutes of the 30-minute chrono counter further enhancing this cool and very colorful dial. A square aperture at 6 o’clock displays the date.

Inside is a manually wound Valjoux 7734 movement which powers the time, date and chronograph functions. This is a good find, and as far as a 1970s chronograph, in a 40 mm case, they are few and far between. Includes original steel bracelet with signed clasp. Unsigned crown. Acrylic crystal.

Posted by:Jason Pitsch

Jason Pitsch is the Founder of Professional Watches. He appreciates good craftsmanship in everything from architecture to automobiles to cameras to clothing. Yet his focus for the past decade has remained consistent on covering just one type: watchmaking.