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/SBGM257
NEW

SBGM257 SBGM257G

Elegance Collection

$7,400

Pre-Order

Despatch will take place between December 2025 & January 2026 with full tracking

Features

A classic mechanical GMT, the "Moondrop" expresses the beauty of dew drops gleaming in autumn moonlight.

In autumn, when the moon’s light fills the sky with its soft glow, drops of dew gleam in the light in a moment that captures the beauty of the season. The SBGM257 “Moondrop” expresses such a special moment with its textured blue dial. Thanks to its modern geometric spiral pattern, the dial changes in appearance based on the angle of the light, recalling how dew drops gleam in the moonlight. The intricate pattern imparts a refined sense of structure, a fitting complement to the Zaratsu-polished case and the high precision of the Calibre 9S66 GMT movement. Prized for its accuracy, beauty, and reliability, this movement enables the wearer to track two time zones simultaneously. The gold-coloured GMT hand can be set to one’s home time or any time zone of one’s choosing. The local hour can be changed in one-hour increments when the crown is extended to the first click position, making time zone adjustments simple and intuitive. The power reserve is approximately three days.

Any purchase through our Grand SEIKO Online Store has a 5 Year limited guarantee

Specifications

Exterior
Case Material: Stainless Steel
Glass Material: Box Shaped Sapphire
Case size: Diameter: 39.5mm
Thickness: 13.7 mm
Length: 46.9mm
Case Colour: Silver
Case Weight: 92g
Band/Bracelet: Strap - Leather (Crocodile)
Band Colour: Blue
Band Reference: C04Y012J0
Dial Colour: Blue Textured
Hand Indicators: Hour, Minute, Seconds, 24-Hour
Calendar Indicators: Date
Dial Markers: Batons
Crown: Pull Out
Movement
Calibre no.: 9S66 Instructions
Movement Type: Automatic - Powered By The Movement of the Wearer
Accuracy: +5 to -3 seconds per day (when static) / +10 to -1 seconds per day (normal usage accuracy)
Power Reserve: 72 Hours Power Reserve
Display: Analogue
Functions
Dual Time: Yes - 24 Hour Hand Can Be Adjusted To A Second Time Zone
Water Resistance: Water Resistant
Other details / Features:
  • Exhibition Case Back
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