Grand Seiko SBGY013
GRAND SEIKO SBGY013
Grand Seiko SBGY013 Specifications
Exterior
Case MaterialStainless steel
Case BackSilver tone see-through screw with etched Grand Seiko logo
Glass MaterialDual-curved sapphire crystal
Glass CoatingAnti-reflective coating on inner surface
Band MaterialSilver tone stainless steel nine-link bracelet
Bezel MaterialFixed polished stainless steel
Dial ColorDomed and textured ice-white inspired by snow-covered frozen surface of Lake Suwa with with engraved Grand Seiko logo below the 12 o’clock position, minute markers and Spring Drive logo at 6 o'clock position
Dial HandsTempered grey silver tone hour, minute, blue colored second hand with Zaratsu polished
Dial MarkersGrey silver tone batons with Zaratsu polished
CrownSilver tone screw down at 3 o'clock position
Case sizeDiameter 38.5 mm × Thickness 10.2 mm
Lug to lug43.7 mm
Band width19 mm
Clasp typeThree-fold clasp with push button release
 
Movement
Caliber no9R31   Instructions
Movement TypeSpring Drive
Power reserveApproximately 72 hours (3 days)
Accuracy±15 seconds per month (±1 second per day)
 
Functions / Specifications
Water resistanceSplash Resistant
Magnetic resistanceEquipped (4,800 A/m)
FunctionsHour, minute, second hand
Features
  • 30 jewels
  • See-through screw case back
  • Power reserve indicator
Reference : Grand Seiko SBGY013G
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Grand Seiko SBGY007
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GRAND SEIKO SBGY007
Grand Seiko SBGY007 Specifications
Exterior
Case MaterialStainless steel
Glass MaterialDual-curved sapphire crystal
Glass CoatingAnti-reflective coating on inner surface
Band MaterialBlack (front) and blue (back) crocodile leather strap with blue stitches
Bezel MaterialFixed polished stainless steel
Dial ColorIce blue pattern with engraved Grand Seiko logo below the 12 o’clock position, minute markers and Spring Drive logo at 6 o'clock position
Dial HandsTempered grey silver tone hour, minute, blue colored second hand with Zaratsu polished
Dial MarkersGrey silver tone batons with Zaratsu polished
CrownScrew down at 3 o'clock position
Case sizeDiameter 38.5 mm × Thickness 10.2 mm
Lug to lug43.7 mm
Clasp typeThree-fold clasp with push button release
 
Movement
Caliber no9R31    Instructions
Movement TypeSpring Drive
Driving SystemManual winding
Power reserveApproximately 72 hours (3 days)
Accuracy±1 second per day / ±15 seconds per month (average)
 
Functions / Specifications
Water resistanceSplash Resistant
Magnetic resistanceEquipped (4,800 A/m)
Weight68 g
FunctionsHour, minute, second hand
Features
  • 30 jewels
  • Case back with lion emblem
  • Power reserve display
  • Screw case back
  • See-through case back
  • Stop second hand function
Reference : Grand Seiko SBGY007G
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