The blued hands are also the original hands for the watch
Take a look at Bovets web site to get a flavour of the brand
The watch was originally designed for professional pilots
which could be polished out
This is a very nice example and uses a Valjoux calibre 7733 movement
Rolex Thunderbird Ref 1038 | Year 1970 The blued hands are alsoFor sale we have a Men's Rolex Oyster Perpetual ref. 1038 Zephyr, solid 18k gold & stainless steel automatic, c. 1970. Gorgeous Rolex signed gold quadrant dial, applied droplet numeral hour markers, gilt minute and hour hands, sweeping central second hand, hands and dial in excellent condition, minor signs of age to the case. Acrylic crystal. 18k solid gold astral bezel on stainless steel case measures 35. 5 mm wide, in excellent vintage condition,