以下　英文ですが仕入れ先からの説明文となります。

腕時計 セイコー Seiko 5 SNKM80 メンズ ステンレス スチール Two トーン シルバー ダイヤル オートマチック 腕時計Seiko 5 SNKM80 Men's Stainless Steel Two Tone Silver Dial Automatic WatchGender:Men's, MPN:SNKM80K1, Features:Water Resistant, Movement:Mechanical: Automatic, Year of Manufacture:2010-Now, Display:Analog, Watch Shape:Round, Case Material:Stainless Steel, Style:Casual Dress, Age Group:Adult, Model:SNKM80, Age:Modern (2000-present), Water Resistance Rating:30 m (3 ATM), Face Color:Silver, Band Material:Stainless Steel, UPC:4954628162137, Description:Model: SNKM80 225 Condition: 100% Authentic & Brand New Packaging: Generic Box, Instructions, & Warranty Warranty Type: 1 Year In House About Seiko: In 1877, at the age of 18, Kintaro Hattori set up business repairing the Western-style clocks that were becoming increasingly popular in Japan. By 1892, Hattori was manufacturing his own clocks in a factory he called Seikosha, from the words "seiko" meaning "exquisite," "success," or "miniature," and "sha" meaning "house." The company grew and prospered, producing its first wristwatch in 1913 and launching the Seiko brand in 1924. Technological innovation has always been a driving force in the company's history. Key milestones include Seiko's introduction of the world's first quartz watch in 1969, and its successful launch, in 1988, of the Kinetic, the world's first battery-free watch with quartz accuracy. Recognized for its technological excellence, Seiko has provided timekeeping services for the Olympic Games and the World Cup Soccer Championships. Today, the Seiko brand continues to stand for state-of-the-art technology, as well as superior quality and refined design. Features Include: Seiko 21 Jewels Self-Winding Automatic Movement (Calibre 7S36) Silver Color Dial with Gold Tone Index Stainless Steel Case and Band Push Button Deployment Clasp Day/Date Display with Spanish Option Hardlex Crystal for Durability Luminous Hands and Markers Transparent Screw Down Case Back Case Size: 38 mm Diameter, 10 mm Thickness Water Resistant - 30 Me201630097533