This model features a Spring Drive, the third movement mechanism, combining the motive force of a mainspring found in mechanical watches with the high precision of a quartz watch, as well as a GMT indicator, all incorporated into a classic design.
The motion of the second hand, smoothly gliding over the black dial, is enabled by the watch’s exclusive sweeping mechanism. This motion is different from that of either a mechanical watch or a quartz watch.
By placing a simple 24-hour scale inside the classical rail track scale, we designed the watch to maintain a formal style with an additional feature of a GMT indicator.
To underscore the texture of the material, a white-plated hand that stands out against the black dial is used for the 24-hour hand. This adds a sophisticated taste and high visibility to the watch.
Any purchase through our Grand SEIKO Online Store has a 5 Year limited guarantee
|Case Material:||Stainless Steel|
Distance Between Lugs: mm
|Band/Bracelet:||Strap - Leather (Crocodile)|
|Hand Indicators:||Hour, Minute, Seconds, 24-Hour|
|Calibre no.:||9R66 Instructions|
|Movement Type:||Spring Drive - Powered By The Movement of the Wearer|
|Accuracy:||±1 second per day / ±15 seconds per month (average)|
|Battery Life:||72 Hours Power Reserve|
|Dual Time:||Yes - 24 Hour Hand Can Be Adjusted To Second Time Zone|
|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.