Grand Seiko Heritage quartz GMT watch black dial steel bracelet 40 mm

Elegant traveller

Grand Seiko is offering a traveller in its Heritage collection with a design that combines sporty chic and elegance. This SBGN011 has a 40 mm steel case with a 12.2 mm polished and brushed finish. A black sunray dial with a 24-hour GMT scale is integrated with the usual 12-hour scale. The watch also has a date indication at 3 o'clock, with a finely framed window. Attention to detail the date back "matched" perfectly with the dial.
The attention to detail is exceptional, as usual on any Grand Seiko. The case finish is an excellent mix of brushed finish and the famous Zaratsu polishing. The indexes are facetted and applied, with a striated finish to stand out from the black dial, the dauphine hands are finely brushed and the GMT hand is differentiated from the rest, by its red tint.
The steel bracelet is not left out, and presents a general brushed finishing, with a small bevel on the edges and the polished sides. A double push-button folding clasp with the Grand Seiko logo is used to open and close the strap.

Movement side

The watch is powered by a Manufacture calibre 9F86. It is hand-assembled by Seiko Epson's watchmakers, and offers all the know-how acquired by the brand since 1969. Indeed, it is a high-end quartz calibre guaranteeing a precision of +/- 10 seconds. To achieve such a result, the calibre is thermo-compensated in order to regulate the oscillations of the quartz according to temperature variations.
Setting the time and date is very easy with this calibre. You just have to pull the crown to the first position to move the hour hand independently. The second position allows you to adjust the hour and minute hands to set the exact time. It should be noted that a fine adjustment is possible, in order not to stop the second hand, and thus let its high precision continue.