Swiss Made Jump Hour Digital Watch (Stainless Steel, Switzerland) – Detailed Overview This striking Swiss-made jump hour wristwatch is a pure product of the 1970s design laboratory, when watchmakers aggressively experimented with form, display logic, and ergonomics. Instead of traditional hands, the watch uses a mechanical jump hour and minute display visible through a horizontal aperture, a layout that was considered futuristic at the time and remains visually disruptive today. The bold, sculptural stainless steel case and integrated metal bracelet place this watch squarely in the space-age, brutalist design language of the era. Powered by a Swiss mechanical movement marked “Basis Watch,” this piece reflects the modular manufacturing ecosystem that supplied many independent Swiss brands during the period. This is a genuine vintage watch, increasingly sought after by collectors of unconventional mechanical displays and 1970s industrial design. Technical Specifications Brand: Lucerne/ Swiss Made Model: Jump Hour Digital Movement: Mechanical, manual winding, Swiss “Basis Watch” calibre Country of Manufacture: Switzerland Production Era: Circa 1970s , Case Material: Brushed and polished stainless steel Dimensions: Approx. 40 mm case width (excluding crown); thickness approx. 15 mm - Dimensions: 40,4mm x 46mm (inner 26) Bezel: Integrated, brushed finish with polished side facets Crystal: Acrylic Water Resistance: Not tested (vintage watch) Dial & Hands Dial Colour: Light cream / off-white Markers: jump hour and minute discs Date: No Branding: “Lucerno digital Swiss” printed on dial Hands: Not applicable – mechanical digital display Caseback: Material: Stainless steel Attachment: Snap-on Engravings: “Swiss Made” and “Stainless Steel Back” Strap & Buckle Strap: Integrated stainless steel bracelet with industrial cut-out links, period-correct design 15mm wide at lug - widening to 18mm Buckle: Semi Integrated folding clasp, unbranded Notable Historical / Brand Context Jump hour watches represent one of the most radical departures from classical horology, replacing continuous motion with discrete mechanical jumps driven by complex cam and spring systems. During the 1970s, Swiss manufacturers—especially smaller ateliers—used ébauche movements like those from Basis Watch to explore bold case architecture and digital-style displays in response to the looming quartz crisis. This watch sits comfortably alongside designs inspired by automotive dashboards, aerospace instrumentation, and modernist architecture, making it a textbook example of experimental Swiss watchmaking from the era. Collector Appeal & Value Potential This watch will appeal to collectors of jump hour complications, fans of 1970s brutalist and space-age design, and buyers seeking mechanical alternatives to electronic digital watches. Clean examples with original bracelets are becoming harderвање—especially those in stainless steel rather than plated cases. Interest in mechanical digitals has shown steady upward momentum as collectors move beyond traditional round, three-hand watches into more expressive territory. Condition Report The watch is in great vintage condition The stainless steel case and bracelet show light scratches and handling marks. The movement is complete and runs at the time of inspection; accuracy and power reserve have not been formally tested. The acrylic crystal shows light wear. service history is known and checked. Overall, an honest- like new, unpolished vintage piece. Delivery Packaging: Securely packed in a generic protective watch box Shipping: Registered and insured shipping from the EU. Customs duties may apply for non-EU buyers. This is a boardroom-grade conversation starter: mechanically clever, visually disruptive, and quietly rare. A strong acquisition for a collector who understands that the 1970s weren’t about playing it safe—they were about jumping hours, literally.