Piaget Altiplano G0A48125 41mm K18 PG Pink Gold — USD 28,167

Vintage Piaget Reference 12427 is an elegant 18k yellow gold automatic dress watch from late 1970s/early 1980s. Features iconic Clous de Paris engraving, likely houses famous ultra-thin calibers. Seeking insights on interest among high-end vintage watch collectors.

Discover favorite micro rotor watches like the Patek Philippe 240 caliber, their history, benefits, drawbacks, and innovations like Chopard's bi-directional winding. Engage in discussions and share experiences with these unique timepieces.

Notable watch companies aim for thin mechanical wristwatches, showcasing varying styles and technologies. Breguet Classique Ref. 5967 achieves slimness with a 36mm x 1.9mm caliber 506.2 movement with 40-hour reserve, while Bulgari Octo Finissimo Automatic focuses on horizontal component layout.

Passionate enthusiast delves into world of Ultra Thin watches, highlighting their uniqueness and importance. Piaget praised for impeccable craftsmanship. Criteria for Ultra Thin defined as sub 5 mm. Complicated watches not considered Ultra Thin.

Rare and historically important AP 'Sun-Ray' tourbillon reference 25643 from the 1980s was the first automatic tourbillon watch, under 5mm thin. Held record for 30 years until beaten by Bvlgari in 2015.

Delve into the unnoticed Glashütte Original Seventies integrated bracelet watch, distinguished by its distinctive design and undervalued status. Despite solid features, it remains overshadowed in the market.