Piaget Tradition "Onyx Pavé 4-Diamond Dial" in 18K White Gold Ref. 9771 D2 omega The term ‘Sigma’ refers to

The term ‘Sigma’ refers to the small greek letter sigmas that flank the T SWISS T on Rolex dials from the early 1970s

This is a very rare and desirable Rolex sports watch that is all about the details

with good even lugs and the fluted bezel is in great condition

wit a so called “snail tachymeter track” and there is are cities listed

Piaget Tradition "Onyx Pavé 4-Diamond Dial" in 18K White Gold Ref. 9771 D2 omega The term ‘Sigma’ refers toThis Piaget, reference 9771 D2, is a prime example from the brand's golden eraa period between the 1960s and 1990s when Piaget perfected the art of seamlessly combining high end watchmaking with exceptional jewelry craftsmanship! This particular model captures the essence of the iconic Piaget style: an ultra slim, distinctive cushion shaped case in 18K white gold, measuring 30 x 30 mm, and a masterful blend of onyx, 18K white gold, and pav set