Seiko SRPE74 5 Sports 24-Jewel Gold Tone Watch

[Product Information] Brand: SEIKO Materials: glass [Product Description] ・Japanese 23 jewel automatic movement (Caliber 7S36). - Stainless steel case and band, push button release clasp. Day/date display, Arabic option, luminous hands and markers, Hardlex mineral crystal for durability. ・Case size: Diameter 41mm, thickness 12mm. ・Waterproof - 100m, screw-down transparent case back. explanation SEIKO 5 - Meaning of 5 . Great marketers had an idea in the 70's. To be a SEIKO 5, a watch must have the following five attributes (hence the name SEIKO 5): Automatic, 2. 3. Waterproof. Shockproof, 4.Date, 5.Day. Some parts of SEIKO 5 are actually from SEIKO 4. If the Day function is omitted, Caliber 7S25 will be used. The only difference from the normally seen 7S26 is the omission of the day wheel. SEIKO 5 Sports reissues also often use the 7S36 caliber. Again the 7S36 is similar to the most popular 7S26, but features 23 jewels as opposed to the 7S26's 21 jewels. Note that all of these movements hit at a speed of 21 feet, 600 bph (beats per hour) or 6 bps (beats per second). As a comparison, the ETA 2824-2 beats at 28'800 bph or 8 bps. The Miyota 82xx hits 21 feet at 600 bph. Why mention these three movements? Because they are probably found in 80% of all cheap automatic watches. Market share, while huge, has recently (2006) been challenged by the proliferation of inexpensive Chinese automatic movements. An automatic watch (also called a self-winding watch) is a mechanical watch, usually with a balance wheel escapement, whose mainspring is wound by the movement of the wearer's arm, eliminating the need for daily manual winding. Quartz watches are powered by electricity, while mechanical watches are powered by a mainspring that requires the clock to be rewound. [Important Note - For Overseas Customers] Thank you for purchasing this product. Please read the following important notes carefully before using this product overseas. 1. Legislation and safety standards This product complies with Japanese safety standards. Please check compatibility with local regulations and safety standards before use in your country. Certain product categories (electronics, cosmetics, food, etc.) may require certification from the importing country. 2.About electrical products This product complies with Japanese power specifications (100V, 50/60Hz). If your country has different power specifications, you will need an appropriate transformer or conversion plug. Using an inappropriate power source may cause malfunction or accident. 3.Language and manual Product instructions and displays may only be in Japanese. The English version of the manual can be downloaded from our website. 4. Warranty and after-sales service International warranty coverage is limited. Please check the warranty for details. After-sales service and repair support overseas may be limited.