Systema Diver 17 Rubis Incabloc – Vintage Swiss Mechanical Diver Watch – Black & Green Dial – 1970s A striking Systema Swiss mechanical diver-style wristwatch from the 1970s, featuring a distinctive black and green dial, rotating diver bezel, date indication and 17-jewel Swiss mechanical movement with Incabloc shock protection. This watch perfectly captures the bold aesthetic of 1970s sports watches. Its substantial cushion-shaped case, black rotating bezel, vivid green chapter ring and bright red central seconds hand create a highly characteristic period appearance. Particularly attractive is the combination of the green peripheral minute track, black central dial and red date numeral, giving the watch considerably more visual personality than a conventional monochromatic diver. The approximately 32 mm case, excluding crown, is complemented by a broad cushion profile that gives the watch greater visual presence on the wrist. Case Case Material: Chrome plated / base metal Case Back: Stainless steel Diameter: Approximately 32 mm (excluding crown) Design: 1970s cushion-style sports case with integrated angular lugs and rotating diver-style bezel. The case back is marked: STAINLESS STEEL BACK WATERRESISTANT INCABLOC 5 ATM TESTED with the number 11077. The broad brushed upper surface and angular geometry are strongly representative of the sports-watch design language of the 1970s. Bezel Type: Rotating diver-style bezel Colour: Black Scale: 60-minute diving / elapsed-time scale The black bezel features prominent numerals at 10-minute intervals and a triangular reference marker at 12 o’clock. Its contrasting black and white design complements the black central dial while framing the green chapter ring particularly effectively. Glass Type: Acrylic crystal The acrylic crystal is consistent with the construction of vintage sports watches from this period. Dial Colour: Black with green chapter ring – bicolor Layout: Arabic hour numerals with peripheral green minute track and contrasting applied luminous-style markers. Hands: Luminous-style hour and minute hands. Seconds: Contrasting red central seconds hand. Date: Date aperture positioned at 3 o’clock with distinctive red date numeral. Details: Signed: SYSTEMA and: 17 RUBIS INCABLOC with T SWISS MADE T positioned at the bottom of the dial. The green peripheral chapter ring is one of the most distinctive elements of this watch. Combined with the black centre, white Arabic numerals and vivid red seconds hand, it produces an unmistakable 1970s sports-watch aesthetic. The dial remains highly legible and retains excellent visual character. Water Resistance: Not tested for water. Movement Type: Swiss mechanical movement Winding: Manual wind Jewels: 17 jewels / 17 rubis Shock Protection: Incabloc Functions: Hours, minutes, central seconds and date Systema is documented on surviving Swiss watches from the 1960s and 1970s using 17-jewel mechanical movements and Incabloc shock protection, including watches fitted with movements from established Swiss ébauche manufacturers. Condition: functional Bracelet Type: Stainless-steel bracelet Material: Stainless steel Length: Approximately 18 cm The vintage-style steel bracelet reinforces the sporty character of the watch and complements the silver-tone cushion case. Condition Grade: B+ The watch shows honest signs of age and previous use consistent with a vintage sports watch from the 1970s. The case and bracelet display surface wear, scratches and small marks resulting from normal use over the decades. The bezel retains strong contrast and the dial remains particularly attractive, with its unusual black-and-green bicolor configuration, luminous-style markers and red accents. The visible ageing contributes to the authentic tool-watch character of the piece rather than detracting from its vintage appeal. Ready to wear. Box / Papers: Delivered with generic presentation box. Story Systema is one of the lesser-known names from the remarkably diverse Swiss watch industry of the mid-20th century. The Systema name is documented as a Swiss watch brand registered by Systema Watch Co. SA in 1959, and surviving examples demonstrate that the company offered both hand-wound and automatic mechanical watches during the 1960s and following years. Unlike the restrained dress watches commonly associated with Systema, this example belongs to the much more adventurous world of 1970s sports and diver-inspired watch design. During this period, Swiss manufacturers increasingly moved away from the conservative round cases of the previous decades. Cushion cases, oversized bezels, vivid colours and high-contrast dials became defining elements of the new sports-watch aesthetic. This Systema embodies that transition exceptionally well. Its broad cushion-shaped case, rotating black elapsed-time bezel and high-contrast dial immediately establish its tool-watch character. But what makes the watch particularly distinctive is its use of colour. The deep green chapter ring, black central dial, red seconds hand and red date numeral create a remarkably charismatic combination that is unmistakably associated with the experimental design vocabulary of the 1970s. The dial also carries the inscription T SWISS MADE T, a period marking associated with the use of tritium luminous material on Swiss watches. Today, the aged luminous elements and subtle colour changes contribute significantly to the watch's authentic vintage appearance. Mechanically, the watch follows traditional Swiss construction with a 17-jewel mechanical movement and Incabloc shock protection — a combination widely used in dependable Swiss wristwatches of the era. Today, vintage Systema watches remain considerably less common and less widely documented than pieces from the major Swiss manufacturers. This makes unusual sports models such as this example particularly interesting for collectors searching beyond the established brands. With its black-and-green bicolor dial, red accents, rotating diver bezel, cushion case, 17-jewel Swiss mechanical movement and unmistakable 1970s design, this Systema is an unusually charismatic survivor from an adventurous period of Swiss watchmaking. Internal Reference Number: ABA 66