GRAND SEIKO SBGR301 MADE IN JAPAN JDM (Japanese Domestic Market)

An automatic mechanical watch with a three-day power reserve and simple design and functions in a larger case

This model retains the Grand Seiko standard design, with an increased case size giving the watch a greater sense of presence.
With the calendar function removed, this model’s focus is simply to provide the correct time.
Equipped with the 9R61 caliber, the watch will run continuously for three days when fully wound, and utilizes the latest hairspring and MEMS manufacturing processes in its escapement (anchor escapement and escape wheel) to deliver higher stability of accuracy when in use.
Greater stability from the new slim-form watch case back provides an outstanding sense of security for the wearer.

SPECIFICATIONS

Case :	Stainless steel, Case back: Stainless steel and sapphire crystal
Glass :	High definition dual-curved sapphire crystal
Coating :	Anti-reflection coating on inner surface
Lumi Brite :	-
Case size :	Diameter 42.0mm×Thickness 13.1mm
Band :	Stainless steel

Movement :	Caliber 9S61
Driving system :	Automatic with manual winding mechanism
Power reserve :	Approximately 72 hours
Accuracy :	+5 to -3 seconds per day (under a static use) Note: This accuracy is the result of measuring the loss/gain of the time for seventeen days before the inside movements of the watch are put in the case. The measurement has been done in the factory where temperatures or position of the movements are controlled.  When the watch is actually worn, the accuracy should be from +10 second/day to -1 seconds/day.

Clasp :	Three-fold clasp with push button release
Water resistance :	10 bar
Magnetic resistance :	4800 A/m (60 gauss)
Weight :	174.0 g