Available now on auction by Second Vintage This is a remarkable example of Citizen's golden era of watchmaking, featuring the highly collectible Crystal Seven 27. Introduced in the mid-1960s, the Crystal Seven line was revolutionary as one of the first Japanese watches to utilize hardened mineral glass instead of acrylic, and at the time of its release, it was among the thinnest automatic day-date watches in the world. This specific example, produced in 1966, combines a stunning fluted bezel with a high-jewel count movement, offering a luxurious aesthetic that rivals its Swiss counterparts of the period. Brand: Citizen Model: Crystal Seven 27 Reference Number: ACSS 2813-Y Serial Number: 60816320 Movement: Automatic, 27 Jewels Dial: Silver sunburst with Day and Date complication Case Size: 37 mm Case Material: Gold Plated Production Year: 1966 Condition: Attractive vintage condition exhibiting minor dial flaws around 12 o'clock and honest wear to the gold-plated case that adds to its vintage character. Dial and Hands The watch presents a sophisticated silver sunburst dial with minor flaws around 12 o'clock, but remains visually appealing overall. It features a distinctive layout with the full day of the week displayed in a framed window at the 12 o'clock position and a date window at 3 o'clock. The applied gold-tone baton indices are crisp and match the sharp, dauphine-style hands perfectly. The dial is signed with the applied Citizen logo and the signature "7" shield emblem indicating the 27-jewel movement, all preserved well. Case and Crystal The 37mm case is gold plated and features a striking fluted bezel that catches the light magnificently, giving the watch a commanding presence on the wrist. The case retains its original form with "hooded" style lugs that offer a seamless transition to the strap. The crown is original and signed with the Citizen "C". The caseback features the "Para Water" designation and the Crystal Seven logo, confirming its heritage. The mineral glass crystal, a defining feature of this model, is clear and allows for excellent legibility. Movement Powering this timepiece is a high-grade Citizen automatic movement with 27 jewels, a step above the standard jewel counts of the era. The movement is clean and the rotor is clearly signed. It is running within vintage tolerances and offers reliable vintage performance. Strap The watch is fitted with a high-quality reddish-brown leather strap with a unique patterned grain. The warm tones of the leather perfectly complement the gold plating of the case, enhancing the overall vintage appeal. Condition This timepiece is in attractive vintage condition. The dial displays small flaws around 12 o'clock but remains bright and legible, which is commendable for a watch from the 1960s. The gold-plated case shows expected signs of age and light wear, particularly on the high edges of the lugs and the caseback, but it retains a strong and attractive gold tone throughout. The fluted bezel remains well-defined. Dimensions With a case diameter of 37mm excluding the crown, this watch sits prominently on the wrist. The unique case shape and fluted bezel make it wear slightly larger, offering a contemporary feel despite its vintage origins. Remarks The Citizen Crystal Seven 27 is a significant model in Japanese horological history. Finding one with this classic fluted bezel configuration is becoming increasingly difficult. This is a great choice for collectors seeking a dress watch with history, style, and mechanical complexity. History Launched in 1965, the Crystal Seven series was a direct response to the increasing demand for durable and elegant automatic watches. It was named for its use of "Crystal" glass, a major selling point over the easily scratched acrylics of the time. The "Seven" refers to the seven days of the week complication. This 1966 model stands as a testament to Citizen's innovation during a decade where they competed fiercely with Seiko and Swiss brands for global recognition. Payment and Shipping Payment must be completed within 1-3 days after purchase. The watch will be securely packaged and shipped with tracking and insurance for your peace of mind. Please review the pictures carefully before bidding. We strive to showcase the watch from multiple angles for an accurate representation. As with all vintage watches, water resistance is not guaranteed. The watch will be delivered in fully functional working condition. If you have any questions, feel free to contact us after the auction ends. / Second Vintage SKU: CIT-CCS-0008