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Grand Seiko Unveil Dusk and Dawn Heritage Collection 44GS USA Exclusive SBGA507 and SBGA509

Grand Seiko Heritage Collection 44GS USA Exclusive

While Oracle Time is a UK-based magazine, we know that plenty of our digital subscribers are across the pond in America. Which is the perfect excuse to talk about the lovely new USA-Exclusive Heritage Collection 44GS SBGA507 and SBGA509 from Grand Seiko. Honestly you can give me any reason to talk about Grand Seiko and I would take it.

Grand Seiko Heritage Collection 44GS USA Exclusive
Grand Seiko Heritage Collection 44GS USA Exclusive

Jumping right into it, this pair of watches is inspired by the original limited edition trio that Grand Seiko released in 2018 as a celebration of the official opening of the Grand Seiko Corporation of America. Like those watches, these new ones feature dials that pay tribute to the traditional Japanese art of kirazuri ukiyo-e woodblock prints, a style of painting that uses pieces of mica to create a sparkling final product.

Grand Seiko Heritage Collection 44GS USA Exclusive

The first of the two watches, SBGA507, is a dusky blue representative of the dark draw of the sky towards evening. Then, SBGA509 is the rosy dawn that follows. The texture of the dials are almost like linen, featuring faintly crosshatched lines interweaving together. However, the individual lines are more intense and prominent than you’d find on a traditional linen dial. Although the added depth of the textures allows the metallic shimmer of the colours to be picked out as light plays across their faces.

Grand Seiko Heritage Collection 44GS USA Exclusive

Beneath the glinting surface of each Heritage Collection 44GS USA is housed the Spring Drive calibre 9R65, which has a power reserve of 72-hours and an astonishing accuracy of +/- seconds per month. That’s equivalent to +/- 1 second per day. It achieves this accuracy using a hybrid mechanism that integrates technology from traditional, mechanical watchmaking and quartz design. You can learn more about Spring Drive technology here.

Grand Seiko Heritage Collection 44GS USA Exclusive

It’s tough to rank where these sit in the tier list of best Grand Seikos of 2024. I do really like the texture and colours of the dials and the 44GS case is lovely, measuring 40mm x 12.5mm. But I find the power reserve indicator on the dial of Spring Drive models deeply distracting. I have to put the Genbi Valley at the top, followed by the Sakura-Wakaba but honestly the USA-Exclusive Heritage Collection 44GS SBGA507 and SBGA509 might clinch the third spot.

Grand Seiko Heritage Collection 44GS USA Exclusive
Grand Seiko Heritage Collection 44GS USA Exclusive

Each reference is limited to 300 pieces at a price of $5,600. Plus, as the name suggests, they are only available from Grand Seiko and authorised retailer boutiques in the US and the online Grand Seiko US Boutique. Normally at this point I’d complain about them not being available globally but Europe has had some solid love from the wider world of Seiko recently, so I’m satisfied to let America have its chance here.

Price and Specs:

Model: Grand Seiko Heritage Collection 44GS USA Exclusive
Ref: SBGA507 (blue), SBGA509 (pink)
Case: 40mm diameter x 12.5mm thickness, stainless steel
Dial: Blue or pink finely textured dial inspired by the sky over Lake Suwa
Water resistance: 100m (10 bar)
Movement: Grand Seiko calibre 9R65, automatic, spring-drive, 30 jewels
Frequency: 28,800 vph (4 Hz)
Power reserve: 72h
Functions: Hours, minutes, seconds, date, power reserve
Strap: Stainless steel bracelet
Price: $5,600, limited to 300 pieces each, available exclusively in the USA

More details at Grand Seiko Boutique.

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About the author

Michael Sonsino

As Digital Editor for Oracle Time, Michael needs an eye for detail, which makes it a good thing that his twin joys in life are miniatures and watches. He's a lifelong fan of fine timepieces, especially those of a more historic nature - if it has a twist of Art Deco, all the better. Recent purchase: Seiko Prospex 1959 Alpinist Modern Re-Interpretation. Grail watch: Vacheron Constantin Historiques American 1921.

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