Grand Seiko SBGR309

$ 4,600.00 USD

Features

A 3-day power reserve with lasting quality

The watch has a maximum 3-day power reserve and combines the latest in hairspring technology with an escapement developed through the MEMS technology to achieve high accuracy and stability when worn.
The exterior exudes a strong sense of presence and a tireless luxury befitting the Grand Seiko standard.
The delicacy, strength and beauty of the movement can be enjoyed the exhibition case back.

Specifications

Exterior

Exterior: Stainless steel

Case back: See-through & Screw case back

Glass Material: Dual-curved sapphire crystal

Glass Coating: Anti-reflective coating on inner surface

Case size: Diameter 42.0mm

Lug-to-lug 47.9mm

Thickness 13.1mm

Band width: 21mm

Clasp type: Three-fold clasp with push button release

The perimeter of Band: 205mm

Movement

Caliber no.: 9S68 Instructions

Movement Type: Automatic with manual winding

Power reserve: Approx. 72 hours (3 days)

Mean daily rate: +5 to -3 seconds per day

  • Mean daily rate is a mean value of daily rates in a condition where the movement before assembly in a case is measured in six positions in a fixed manner under artificially controlled environment for 12 days.

Functions

Water resistance: 10 bar

Magnetic resistance: 4,800 A/m

Other details / Features:

  • Screw-down crown
  • 35 jewels