The Rado DiaStar 1 is a landmark in horological history — the world's first scratchproof watch, introduced in 1962. Rado pioneered the use of Chromite, a proprietary ultra-hard metal alloy, combined with a monocoque case construction that revolutionised watch design and durability. This example presents the distinctive faceted case and integrated Chromite bracelet in the austere, modernist form that made the DiaStar an icon. The black dial with applied gold-tone indices and baton hands exemplifies the clean, functional aesthetic central to the DiaStar concept. A genuine collector's piece and a cornerstone of Swiss watch design history. --- Specifications --- Brand: Rado Series: DiaStar 1 Reference: DIASTAR 1 Movement: Automatic Case Material: Chromite (Rado proprietary hardmetal) Crystal: Scratch-resistant mineral crystal Dial: Black with gold-tone applied bar indices and baton hands Case Back: Integrated Chromite case back Bracelet: Chromite integrated bracelet with deployment clasp Period: 1990s Country of Origin: Switzerland --- Condition Report --- Overall: Good — visible signs of wear consistent with age and use Case & Bezel: Chromite case retains its characteristic hardness; light surface marks visible on faceted surfaces Dial & Crystal: Black dial in good condition; crystal shows light surface marks Bracelet & Clasp: Integrated Chromite bracelet in good working order; clasp functions correctly; light wear on link surfaces Functions: Hours, minutes, seconds, date — movement confirmed operational --- International Shipping & Customs --- International buyers are solely responsible for all import duties, taxes, and customs charges applicable in their country of residence. The item will be declared at its full sale value in accordance with international trade regulations. Buyers are advised to verify local import requirements prior to placing a bid.