Grand Seiko Sport Spring Drive GMT Ref. SBGE255G

• Description

  Grand Seiko Sport Spring Drive GMT

  Equipped with a GMT hand, this unique model features Grand Seiko's exclusive Spring Drive caliber, which combines the driving force of a mainspring with the high precision of a quartz watch. Housed in a water-resistant stainless steel case with a ceramic bezel, 24-hour GMT hand, and Lumibrite indices for exceptional readability and accuracy, it is complemented by the smooth Spring Drive movement.

  Specifications

  Exterior Exterior: Stainless steel with ceramic bezel Case back: Screw-down case back Glass material: Double-curved sapphire Glass coating: Anti-reflective coating on the inner surface LumiBrite: LumiBrite on hands and hour markers Case size: Diameter 40.5mm Lug-to-lug 48.7mm Thickness 14.7mm Strap width: 20mm Clasp type: Triple folding clasp with push-button release

  Movement Caliber code: 9R66 Instructions Movement type: Spring Drive Power reserve: Approximately 72 hours (3 days) Accuracy: ±1 second per day / ±15 seconds per month (on average)

  Functions Water resistance: 20 bar Magnetic resistance: 4,800 A/m Weight: 172 g Other details / Features: Screw-down crown 30 jewels 24-hour hand (dual time display function) Power reserve display Time difference adjustment function linked to the calendar

• Technical specifications
  • Collection
    Sport
  • Material
    Steel, Ceramic
  • Bracelet
    Steel
  • Function
    Gmt
  • Movement
    Automatic
  • Size
    40.5 mm

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