Seiko Chronograph S/G
Caliber V657
Stainless steel / gold case and bezel. 
Numeral index. 
Hardlex glass. 
Chronograph with date. 
Movement Made in Japan.
Frequency of crystal oscillator: 32,768Hz=hertz 
Loss/gain ( monthly rate): >15sec at normal temp(5c~35c) 
Operational temp range: -10c~+60c 
Driving system: step motor, 4 pieces 
Battery: Seiko SR927W, 1 unit 
Integrated circuit: C-MOS-LSI 
Degree of water resistant: 5 Bars
Case width including crown: 42mm
Case thickness: 12mm
Flush feet width: 20mm
Bracelet reference: 4435-ZE
 
62-992CN5