


SEIKO 5 - Meaning of "5". A good marketing person had ideas in the 70s. In order to achieve the SEIKO 5, the watch requires 5 attributes (hence the name SEIKO 5). Automatic 2.3.Waterproof Shock Resistant, 4.Date, 5.Day Some Seiko 5 are actually Seiko 4. Caliber 7S25 is used if the "Day" function is omitted. The only difference between the 7S26 normally seen is the abbreviation of the daywheel. We often reissue Seiko 5 Sports with 7S36 caliber. The 7S36 once again resembles the most popular 7S26 but features 23 gemstones as opposed to 21 gemstones in the 7S26. Please note that all of these movements hit at speeds of 21' 600 bph (beats per hour) or 6 bps (beats per second). As a comparison ETA 2824-2 hits at 28'800 bph or 8 bps. Miyota 82xx hits at 21 feet 600 bph. Why mentioning these three movements? Perhaps because 80% of all cheap automatic watches. The market share is huge yet challenged by the growth of inexpensive Chinese automatic movements in recent (2006) An automatic watch (also known as a automatic watch) is a mechanical watch, which is usually equipped with a balance wheel escapement, the main spring is wound by the motion of the wearer's arm, and there is no need to wind it manually. A quartz watch is powered by electric, but a mechanical watch is powered by the main spring where it needs to be rewinded.




| Manufacturer | Seiko |
| Brand | SEIKO |
| Model | SEIKO 5 SPORTS |
| Item Weight | 10.9 ounces |
| Product Dimensions | 5 x 4 x 4 inches |
| Item model number | SRPE74 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | SRPE74 |
| Special Features | Glow In The Dark |
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