What is a Seiko Automatic watch?
A Seiko Automatic watch is not the same as a Seiko Kinetic watch. A Seiko Automatic is a mechanical wristwatch with a self-winding mechanism. In other words, one does not have to wind the crown periodically to keep the watch running. A manual or manual wind watch must be wound by hand, using the crown, usually every day, to operate continuously.
All self-winding watches work on the principle of converting arm motion (kinetic energy) into the winding of the mainspring (potential energy). Usually, this is performed by a half-disc of metal weighted at the edge called a rotor, which spins when the wearers arm is accelerated unpredictably (that is, when moved normally in the course of everyday life). This rotary motion is then geared down to wind the central arbor of the mainspring.
Seiko mechanical Automatic women's watch RUNNING
$14.99 
Time Left: 15m |
| Seiko SNX115 Men's 5 Automatic StainlessSteel Blck Dial
$117.00
Time Left: 15m |
| Rare 21J 7019 Seiko Vintage Automatic Winding Men Watch
$20.01 (0 Bids) Time Left: 16m |
| Vintage Automatic Winding RARE 7009 Seiko 5 Men Watch
$3.06 (0 Bids) Time Left: 16m |
| RARE 6309 Seiko Vintage Automatic Men Gold Face Watch
$12.31 (0 Bids) Time Left: 19m |
| RARE 7019 Seiko RARE Vintage Automatic Mechanical Watch
$15.39 (0 Bids) Time Left: 20m |
| Seiko SNX995 Mens 5 Automatic Stainless Steel Champagne
$117.00
Time Left: 24m |
| Seiko SNX111 Men's 5 Automatic StainlessSteel Whte Dial
$117.00
Time Left: 27m |
| Seiko SNXE91 Men's 5 Automatic StainlessSteel Blck Dial
$117.00
Time Left: 29m |
| Seiko SNXS73K Men's 5 Automatic Stainless Steel
$117.00
Time Left: 32m |
| Seiko SNXA05 Men's 5 Automatic Stainless Steel
$117.00
Time Left: 34m |
| Men's Seiko Automatic Black Dial Date Watch SNM025
$148.00
Time Left: 49m |
| SUPERB LADIES SEIKO 21 JEWEL AUTOMATIC WATCH IN G.W.O
$12.31 (0 Bids) Time Left: 53m |
| NEW SEIKO SNZG37 MENS AUTOMATIC DIVE BLUE DIAL WATCH
$205.00
Time Left: 1h 13m |
| Vintage Automatic Winding Mechanical Watch 6309 Seiko
$3.06 (0 Bids) Time Left: 1h 16m |
| SEIKO MENS AUTOMATIC OYSTER BLACK ROMAN DL WATCH SNKA23
$16.50 (7 Bids) Time Left: 1h 29m |
