Grand Seiko SBGM245

Features

GMT and sports. A perfect combination.

The GMT hand allows the time to be read in a second time zone and the hour hand can be adjusted without compromising the watch’s accuracy. This dual-time capability is the perfect function for the world traveler and is here available in a high-performance sports watch. The hour and minute hands are substantial and carry LumiBrite so as to be easily legible, day and night. The GMT hand is in red and has a distinctive shape that makes it readable at a glance against the deep blue dial. The screw-down crown is recessed at the four o’clock position for extra security and the watch is water resistant to 20 bar. All this, in a case that is just 40.5 mm in diameter. The convenience of GMT meets the high functionality of a true sports timepiece. Quite a combination.

Specifications

Exterior

Exterior: Stainless steel

Case back: Screw case back

Glass Material: Dual-curved sapphire crystal

Glass Coating: Anti-reflective coating on inner surface

LumiBrite: LumiBrite on hands and index(es)

Case size: Diameter 40.5mm

Lug-to-lug 48.6mm

Thickness 14.4mm

Band width: 20mm

Clasp type: Three-fold clasp with push button release

The perimeter of Band: 192mm

Movement

Caliber no.: 9S66 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: 20 bar

Magnetic resistance: 4,800 A/m

Other details / Features:

• Screw-down crown
• 35 jewels
• 24-hour hand (dual time display function)
• Calendar-linked time difference adjustment function