Vintage Oris Tank Rectangular – Cal. 451 – 15 Jewels – Small Seconds – Swiss Made Vintage Swiss-made Oris rectangular mechanical wristwatch, dating approximately from the 1950s and powered by the Oris calibre 451 manual-winding movement. A particularly attractive period design featuring a rectangular gold-tone case, aged champagne/cream dial, applied gold-tone Arabic numerals and hour markers, and a subsidiary small-seconds register at 6 o’clock. Specifications - Brand: Oris - Period: Approx. 1950s - Movement: Mechanical manual wind - Calibre: Oris 451 - Jewels: 15 - Small seconds at 6 o’clock - Swiss Made - Rectangular / Tank-style case - Gold-tone / gold-plated case - Approx. case width: 29 mm excluding crown - Approx. lug-to-lug: 38–39 mm - Black leather strap Condition Good authentic vintage condition with visible signs of age and use. The dial has developed genuine age-related patina, spotting and surface marks which give the watch considerable vintage character. The case shows scratches, surface wear and areas of wear to the gold-tone finish. The crystal also shows age-related marks. The movement appears complete and is clearly marked Swiss Made – 15 Jewels – Cal. 451. No recent service history is available. Accuracy and power reserve have not been professionally tested. Water resistance is not guaranteed. The photographs form an integral part of the description and show the actual watch being offered. Please examine all photographs carefully for the exact cosmetic condition. Shipping Carefully packed and shipped from the United Kingdom with tracked delivery. International buyers are responsible for any customs duties, import VAT, taxes or handling charges applicable in their destination country. These charges are not included in the purchase or shipping price.