The first ever Grand Seiko chronograph, this model is powered by a Grand Seiko’s unique Spring Drive calibre, which combines the motive force of a mainspring with the high precision of a quartz watch.
The Spring Drive mechanism allows the watch to maintain precise timekeeping while also incorporating accurate chronograph capabilities, all with a maximum 72-hour (3-day) power reserve.
Grand Seiko's original glide motion is also featured in the chronograph's blue steel second hand.
The chronograph utilises a Ready/Start button with a half-press shutter, to ensure the most precise possible operation, the chronograph start an stop buttons have a ‘ready’ stage so that the chronograph is armed by pressing the button half way.
Any purchase through our Grand SEIKO Online Store has a 5 Year limited guarantee
|Case Material:||Stainless Steel|
Distance Between Lugs: mm
|Band/Bracelet:||Bracelet - Stainless Steel|
|Hand Indicators:||Hour, Minute, Seconds, 24-Hour|
|Calibre no.:||9R86 Instructions|
|Movement Type:||Spring Drive - Powered By The Movement of the Wearer|
|Accuracy:||±15 seconds per month (±1 second per day)|
|Battery Life:||72 Hours Power Reserve|
|Dual Time:||Yes - 24 Hour Hand Can Be Adjusted To Second Time Zone|
|Stop Watch:||Stopwatch Measures 12 Hours In 1/5th Of A Second Increments|
|Water Resistance:||100 Metres|
|Other details / Features:||
One of the world's foremost mechanical movements, the culmination of high-precision micro-engineering and the attention to detail of Seiko's expert watchmakers.
Spring Drive is a unique movement that delivers one-second-a-day precision, using just the power of a mainspring.