Universal Genève Square

Universal Genève Date Automatic Microtor Ref. 871100 | Rare 5 o’clock Date | Cal. 71 Description This Universal Genève Ref. 871100 is a quietly special watch, the kind that rewards close inspection. The design is clean and compact, housed in a cushion-shaped case measuring 31 × 31 mm, but the real interest lies in the dial configuration. The silver sunburst dial shows light, honest patina, adding warmth without compromising legibility. The layout remains very clean and symmetrical, but what truly sets this example apart is the date window at 5 o’clock. Most examples of this reference are seen with the date at 3 or 6. The 5 o’clock placement is far less common and immediately elevates this watch from standard to collectible. It introduces subtle asymmetry without disturbing the overall balance. Inside is the Universal Genève Calibre 71 micro-rotor automatic movement. This is the same family of micro-rotor calibres used in certain Gerald Genta–designed Polerouter models, and for good reason. Slim, efficient, and mechanically refined, it remains one of Universal Genève’s most respected automatic movements. The watch is fitted with an aftermarket leather strap and buckle, keeping the presentation honest while allowing the focus to remain on the head of the watch. Specifications • Brand: Universal Genève • Model: Date Automatic Microtor • Reference: 871100 • Movement: Automatic micro-rotor, Calibre 71 • Case Material: Stainless steel • Case Shape: Cushion • Case Dimensions: 31 × 31 mm • Dial: Silver sunburst with light patina • Date: At 5 o’clock (rare configuration) • Crystal: Acrylic • Strap: Aftermarket leather • Buckle: Aftermarket • Functions: Hours, minutes, sweeping seconds, date • Water Resistance: Not guaranteed due to age Condition Report • Dial: Original silver sunburst dial with light, even patina and clean printing. • Case: Stainless steel cushion case in good vintage condition with light wear consistent with age. • Crystal: Acrylic crystal showing visible scratches consistent with vintage use. • Movement: Calibre 71 micro-rotor automatic running smoothly and keeping steady time. • Strap and Buckle: Aftermarket leather strap and buckle in good wearable condition. Why the 5 o’clock Date Matters Universal Genève produced the Ref. 871100 with multiple date configurations. The vast majority feature dates at 3 or 6 o’clock. The 5 o’clock execution is significantly rarer and changes the character of the dial entirely. Collectors value these asymmetric layouts because they reflect experimentation rather than standardized production. It’s a small detail with outsized impact on collectibility. Historical Significance Universal Genève’s micro-rotor movements are central to the brand’s legacy. The Calibre 71 shares its architecture with the movements that powered the iconic Polerouter series, emphasizing slim construction and efficiency. Watches like this Ref. 871100 show how Universal Genève applied advanced movement design across its catalog, creating refined, forward-thinking watches that remain relevant decades later.