Grand Seiko Heritage Collection Automatic 3 Days Black Dial

SBGR 309


The Grand Seiko SBGR309 was first launched at Baselworld 2017, the 42mm diameter stainless steel case is a little bit bigger in size than the other general models in the collection, exuding a strong sense of sporty presence with the brand's highest standard.

The 9S68 caliber offers a maximum 3-day power reserve for the wearer and the movement can be clearly seen through the exhibition case back.

The conical design of the lugs on the SBGR309 that converges towards the front end shows neat lines whether viewed from the front or both sides. The three-dimensional hour markers added an extra bold touch to the case.




SBGR309 Specifcation:

Movement
Caliber: 9S68
Movement Type: Automatic with manual winding capacity
Power Reserve: Approx 72 hours (3 days)
Accuracy: 5 to -3 seconds per day (when static) / 10 to -1 seconds per day (normal usage accuracy)
Magnetic resistance: Equipped


Exterior
Case Material: Stainless Steel
Case Size: Diameter 42mm × Thickness 13.1mm
Glass Material: Dual-curved sapphire crystal
Glass Coating: Anti-reflective coating on the inner surface
Clasp Type: Three-fold clasp with push button release


Other Details
Water Resistance 10 bar
Case back with lion emblem
Date display
Screw case back
Screw-down crown
See-through case back
Stop-seconds hand function
35 Jewels