The reference 21528 is powered by Longines caliber 23M manual wind movement. A beautifully designed and handsome vintage dress model with a robust design that features a sub-seconds hand. SPECS Stock # LNGS21528 Brand Longines Style Dress Model 21528 Serial 101 Size Men's/ Unisex Material Stainless Steel Dial Yellow Millimeters 32mm Bracelet 2pc Leather Strap CASE & BRACELET The broad lug case has been lightly polished in the past and remains symmetrical with thick lugs. The crown is most likely an early replacement. The case back is engraved "R.W. HAYS". The watch comes supplied on a 2pc leather strap. DIAL & HANDS The beautiful dial has aged to an impressive and vibrant metallic golden coloration, the dial itself shows appropriate signs of age which elevate its vintage aesthetic. The original blue steel hands show some slight age and remain in overall excellent condition. ACCESSORIES None. The watch is keeping time, previous service history is unknown.