Description
SEIKO Prospex SSC939 Specifications
| Feature |
| |||
|---|---|---|---|---|
| Driving system | Solar | |||
| Caliber Number | V192 | |||
| Case material | Stainless steel | |||
| Case back | Solid screw | |||
| Band type | Bracelet | |||
| Band material | Stainless steel | |||
| Band color | Silver tone | |||
| Band width | 21 mm | |||
| Clasp | Three fold clasp with push button release | |||
| Dial color | Grey with radial finish and black subdials | |||
| Glass material | Curved sapphire crystal | |||
| Glass coating | Anti-reflective coating on inner surface | |||
| Hands | Luminous cream and silver tone (hour, minute) with black and white colored second hand | |||
| Dial markers | Luminous cream silver tone batons indexes | |||
| Second markers | Minutes markers around the outer rim | |||
| Lumi Brite | Hands and indexes markers | |||
| Bezel | Fixed navy blue colored stainless steel aluminum with tachymeter | |||
| Crown | Push/pull out at 3 o’clock position | |||
| Calendar | Date display between 4 and 5 o’clock position | |||
| Function |
| |||
| Accuracy | ±15 seconds per month | |||
| Drive duration | Operating for approximately 6 months (when fully charged) | |||
| Magnetic reluctance | Magnetic resistance 4,800 A/m | |||
| Water resistance | 10 bar water resistance (100 meters / 330 feet) | |||
| Size | Diameter 41.4 mm x Thickness 13 mm | |||
| Lug to lug | 45.9 mm | |||
| Bracelet length | 197 mm | |||
| Weight | 164 g |
SEIKO Prospex SSC939 Features
Introduced in 1969, the Seiko Speedtimer was a major milestone in chronograph innovation, and marked the beginning of an important decade of the Speedtimer in its prime. The 70s were famed for many things: fashion, music, but also motorsports. Designed under the theme of ‘Classic Motorsports,’ the ‘Grand Touring’ Speedtimer is inspired by, and designed to be reminiscent of, vintage muscle cars that would race down endless highways.
Encased in a navy-blue aluminum bezel and sapphire crystal glass, this chronograph features a clean-cut grey dial, with hour and minute hands that resemble the original Speedtimer from 1969. With 12 spots of Lumibrite, this timepiece is designed to be legible in darker conditions. With a chronograph second scale around the dial ring, this piece also features a Tachymeter on the bezel for measuring speed – an iconic element of the original Seiko Speedtimer.
Featuring a solar-powered V192, this Speedtimer chronograph is accurate to +/- 15 seconds per month, whilst maintaining a full charge of 6 months.
Prospex is a combination of the words ‘Professional’ and ‘Specifications.’ Seiko Prospex timepieces are designed to be practical, reliable and durable; to meet the high standards required in extreme environments for sports lovers and adventure seekers alike.
- Date display
- Tachymeter function
- Screw case back
- Power reserve indicator
- Overcharge prevention function
- 24-hour hand
- Equipped with small seconds hand
- Chronograph up to 60 minutes in 1/5 second increments
About Seiko Prospex SSC939
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.
