From Longines, the celebrated master of Swiss elegance, this is an ultra-slim dress watch model bearing the reference number 4027 8 (Cal. 847), produced in the 1970s with timeless minimalist lines. Featuring a vibrant Tiffany turquoise blue dial, classic black Roman numerals, a gold applied winged hourglass emblem, and Longines' renowned in-house manual-wind Caliber L847.3 movement, it wears with exceptional lightness, sophistication, and poise. ​Technical Specifications ​Brand / Model / Reference: Longines Ultra-Slim Manual-Wind – Ref. 4027 8 / 847 (Vintage 1970s) ​Movement: Powered by an original Swiss-made, 17-jewel (17 Jewels) in-house Longines Caliber L847.3 ultra-slim manual-wind movement. The movement bridge clearly displays "LONGINES SWISS - 17 JEWELS - L847.3" along with its serial number ​Case Dimensions: Approximately 35 mm including the winding crown (approximately 33.5 mm excluding the crown / vertical lug-to-lug stance approximately 38 mm). Thanks to its ultra-slim profile, it slides effortlessly under a shirt cuff and offers barely-there wearing comfort ​Case & Crown Structure: Stainless steel / chromed base metal case paired with a snap-on stainless steel caseback. Fitted with its original knurled crown Please note that the reverse side of the case, around the caseback perimeter and lug recesses, exhibits age-related pitting/metal erosion from previous moisture/wear; this wear is entirely confined to the back of the case, remains invisible from the front, does not impede usability in any way, and resembles a natural vintage texture/pattern The case also shows honest hairline scratches consistent with age ​Caseback: Original stainless steel snap-on caseback . The exterior bears the serial number 17 601529, while the inner face features circular perlage finishing, the winged hourglass logo with "LONGINES", "SWISS MADE", and the reference stamps 4027 8 / 847 ​Dial and Hands: A sunburst Tiffany / turquoise blue dial . Features the applied gold Longines winged hourglass emblem, black Roman numerals, slender black hands, and the "SWISS MADE" signature at 6 o'clock. The dial has been professionally restored/refinished (redial) in the past and remains in immaculate visual condition. ​Condition & Accessories Details ​Operational Status: The in-house Longines Caliber L847.3 movement ​Strap & Buckle: Fitted with a brand-new black leather strap with an embossed reptile grain that provides a striking contrast with the turquoise dial, finished with a stainless steel pin buckle Please note that the strap and buckle are non-original (aftermarket). ​Please Note: This vintage Longines offers a stand-out aesthetic thanks to its ultra-slim profile and vibrant Tiffany turquoise concept. Details such as the age-related metal pitting/wear on the caseback perimeter (which is strictly cosmetic and does not affect function), hairline scratches, the refinished dial (redial), and the aftermarket strap . Due to its vintage/antique nature, no water resistance warranty is provided. For cross-border or international shipments, any potential customs duties, taxes, or additional clearance fees are entirely the responsibility of the buyer. Please review all macro photos carefully before finalizing your purchase.