Description
SEIKO Prospex SPB212J1 Specifications :
| Feature |
| ||
|---|---|---|---|
| Driving system | Automatic with manual winding capacity | ||
| Caliber Number | 6R35 | ||
| Case material | Stainless steel | ||
| Case back | Transparent | ||
| Band type | Strap | ||
| Band material | Nylon leather | ||
| Band color | Green | ||
| Band width | 20 mm | ||
| Clasp | Buckle with push button | ||
| Dial color | Dark green sunray | ||
| Glass material | Curved sapphire crystal with anti-reflective coating on inner surface | ||
| Hands | Luminous yellow and gold tone (hour, minute) with silver tone, white and red colored tipped second hand | ||
| Dial markers | Yellow gold tone indexes with arabic number at 2, 4, 6, 8, 10 and 12 o’clock position | ||
| Second markers | Minutes markers around the outer rim | ||
| Lumi Brite | Hands and indexes | ||
| Bezel | Fixed gold tone stainless steel | ||
| Crown | Screw down at 3 o’clock position | ||
| Calendar | Date display at 3 o’clock position | ||
| Function | Date, hour, minute, second, stop second hand | ||
| Accuracy | -15 to +25 seconds per day | ||
| Vibration | 21,600 vibrations per hour | ||
| Drive duration | Power reserve: approximately 70 hours | ||
| Water resistance | 20 bar water resistance suitable for recreational surfing, swimming, snorkeling, sailing and non-diving water sports | ||
| Size | Length : 46 mm x Diameter : 38 mm x Thickness : 12.9 mm | ||
| Maximum wrist size | 20 cm | ||
| Weight | 79 g |
SEIKO Prospex SPB212J1 Features :
- Date display
- 24 jewels
- Screw case back
- Screw-down crown
- See-through case back
- Stop second hand function
History of Seiko
The company was founded in 1881, when Kintarō Hattori opened a watch and jewerly shop called “K. Hattori” (服部時計店 Hattori Tokeiten) in the Ginza area of Tokyo, Japan. Eleven years later, in 1892, he began to produce clocks under the name Seikosha, meaning roughly “House of Exquisite Workmanship”.
The first watches produced under the Seiko brand appeared in 1924. In 1969, Seiko introduced the Astron, the world’s first production quartz watch, it cost the same as a medium-sized car. Seiko later went on to introduce the first quartz chronograph.
