Description
SEIKO Prospex SRPH15 Specifications :
| Feature |
| |||
|---|---|---|---|---|
| Driving system | Automatic with manual winding | |||
| Caliber Number | 4R35 | |||
| Case material | Stainless steel | |||
| Case back | Screw solid | |||
| Band type | Bracelet | |||
| Band material | Stainless steel | |||
| Band color | Silver tone | |||
| Band width | 20 mm | |||
| Clasp | Three-fold with push button release | |||
| Dial color | Green sunray | |||
| Glass material | Sapphire crystal | |||
| Hands | Luminous grey and silver tone (hour, minute) with grey and gold tone second hand | |||
| Dial markers | Grey and silver tone batons with double trapezoid indexes at 12 o’clock position | |||
| Second markers | Minutes markers around the outer rim | |||
| Lumi Brite | Hands and indexes | |||
| Bezel | Two way rotating green colored stainless steel with silver tone compass scale points | |||
| Crown | Silver tone screw down at 4 o’clock position | |||
| Calendar | Date display at between 4 and 5 o’clock position | |||
| Function | Date, hour, minute, second, stop second hand | |||
| Accuracy | -35 to +45 seconds per day | |||
| Magnetic resistance | 4,800 A/m | |||
| Vibration | 21,600 vibrations per hour | |||
| Drive duration | Power reserve approximately 41 hours | |||
| Water resistance | 20 bar water resistance (200 meters / 660 feet) | |||
| Size | Length : 45.2 mm x Diameter : 42.4 mm x Thickness : 11.7 mm | |||
| Bracelet length | 20 cm | |||
| Weight | 150 g |
SEIKO Prospex SRPH15 Features :
- Date display
- 23 jewels
- Screw case back
- Screw-down crown
- Rotating bezel
- 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.
