Description
SEIKO Prospex SPB155J1 Specifications :
| Feature |
| ||
|---|---|---|---|
| Driving system | Automatic with manual winding capacity | ||
| Caliber Number | 6R35 | ||
| Case material | Stainless steel | ||
| Case back | Transparent | ||
| Band type | Bracelet | ||
| Band material | Stainless steel | ||
| Band color | Silver tone | ||
| Band width | 20 mm | ||
| Clasp | Fold over with push button safety | ||
| Dial color | Green | ||
| Glass material | Curved sapphire crystal with anti-reflective coating on inner surface | ||
| Hands | Luminous white and gold tone colored (hour, minute, second) with red tipped second hand | ||
| Dial markers | 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 silver tone stainless steel | ||
| Crown | Screw down | ||
| Calendar | Date display at the 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 | ||
| Size | Length : 46 mm x Diameter : 38 mm x Thickness : 12.9 mm | ||
| Maximum wrist size | 21 cm | ||
| Weight | 144 g |
SEIKO Prospex SPB155J1 Features :
- Date display
- 24 jewels
- Screw case back
- Screw-down crown
- See-through case back
- Stop seconds 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.
