An enduring classic from Grand Seiko's celebrated vintage catalogue, the Hi-Beat Automatic Day-Date Ref. 5646-7010 showcases the brand's commitment to precision engineering and understated design. Featuring a high-frequency automatic movement and timeless styling, this reference remains a popular choice among collectors and enthusiasts alike.

The watch is fitted with a clean off-white dial featuring applied stick hour markers, matching hands, and a practical day-date display. Its 36mm stainless steel case is complemented by a signed GS crown and a screw-down case back, while the original-style stainless steel Grand Seiko bracelet completes the classic period look.

The dial appears clean and well preserved. The crystal shows some signs of wear, while the stainless steel case and bracelet display hairline marks and light dings consistent with age and regular use. The quick-set date function is operating correctly, and the movement is running.

A highly collectible vintage Grand Seiko, this Hi-Beat reference offers classic proportions, dependable mechanical performance, and the refined craftsmanship for which the brand is renowned.

THE DETAILS…

Reference: 5646-7010

Movement: Automatic Hi-Beat

Case: 36mm stainless steel with signed GS crown and screw-down case back

Dial: Off-white with applied stick hour markers, matching hands, and day-date display

Bracelet/Strap: Stainless steel Grand Seiko bracelet

Accessories: None

This watch is sold with a 6-month warranty. For more information, please visit our Warranties section in the Terms & Conditions.