LoupeLabWatch Comparison
Grand Seiko Automatic Date Stainless Steel / Black / Bracelet vs Grand Seiko Spring Drive Stainless Steel / Silver / Bracelet
Side-by-side specifications for Grand Seiko Automatic Date Stainless Steel / Black / Bracelet and Grand Seiko Spring Drive Stainless Steel / Silver / Bracelet.
Grand Seiko
Grand Seiko Automatic Date Stainless Steel / Black / Bracelet
Ref. SBGR309
Grand Seiko
Grand Seiko Spring Drive Stainless Steel / Silver / Bracelet
Ref. SBGA299
Case
Diameter42 mm40.5 mm
Thickness13.1 mm12.9 mm
MaterialStainless SteelStainless Steel
Water Resist.100 m100 m
CrystalSapphireSapphire
Dial ColorSilverSilver
Movement
CaliberGrand Seiko 9S68Grand Seiko 9R65
ManufacturerGrand SeikoGrand Seiko
TypeAutomaticSpring Drive
Power Reserve72 hrs72 hrs
Frequency28,800 bph--
Jewels3530
Complicationshours, minutes, secondshours, minutes, seconds, date, power reserve indicator
Pricing & Production
CollectionMechanicalSpring Drive
Grand Seiko
Grand Seiko Automatic Date Stainless Steel / Black / Bracelet Ref. SBGR309
Grand Seiko
Grand Seiko Spring Drive Stainless Steel / Silver / Bracelet Ref. SBGA299
Case
Diameter
SBGR30942 mm
SBGA29940.5 mm
Thickness
SBGR30913.1 mm
SBGA29912.9 mm
Material
SBGR309Stainless Steel
SBGA299Stainless Steel
Water Resist.
SBGR309100 m
SBGA299100 m
Crystal
SBGR309Sapphire
SBGA299Sapphire
Dial Color
SBGR309Silver
SBGA299Silver
Sponsored
Movement
Caliber
SBGR309Grand Seiko 9S68
SBGA299Grand Seiko 9R65
Manufacturer
SBGR309Grand Seiko
SBGA299Grand Seiko
Type
SBGR309Automatic
SBGA299Spring Drive
Power Reserve
SBGR30972 hrs
SBGA29972 hrs
Frequency
SBGR30928,800 bph
SBGA299--
Jewels
SBGR30935
SBGA29930
Complications
SBGR309hours, minutes, seconds
SBGA299hours, minutes, seconds, date, power reserve indicator
Pricing & Production
Collection
SBGR309Mechanical
SBGA299Spring Drive
Sponsored