Vintage Seiko Grand Seiko 5646-7000
Vintage Seiko Grand Seiko 5646-7000 – photo 2
Vintage Seiko Grand Seiko 5646-7000 – photo 3
Vintage Seiko Grand Seiko 5646-7000 – photo 4

Vintage Seiko Grand Seiko 5646-7000

Sale price$1,000.00
Sold out
Pickup currently unavailable at The Watch Preserve FW

Vintage Seiko Grand Seiko 5646-7000

The Watch Preserve FW

Pickup currently unavailable

1253 West Magnolia Avenue
Fort Worth TX 76104
United States

601 North Ridge Road

Pickup currently unavailable

601 North Ridge Road
Wichita KS 67212
United States

3167686781

Vintage 36mm 1970 Seiko Grand Seiko 25J Men's Automatic Wristwatch 5646A Japan Stainless Steel 5646-7000. Discover the ultimate in precision and heritage with this authentic vintage Grand Seiko 56GS (Ref. 5646-7000), crafted by Suwa Seikosha in April 1970. Powered by an adjusted 25-jewel Hi-Beat 28,800 BPH automatic movement, this luxury Japanese dress watch showcases Taro Tanaka’s iconic Grammar of Design aesthetic alongside an original gold GS medallion caseback and day-date complication. An exceptional collector's timepiece, it delivers timeless mid-century styling, razor-sharp case geometry, and peerless mechanical craftsmanship.

Specifications

SKU
11022026095159
Item
Wristwatch
Brand
Seiko
Model
Grand Seiko
Reference
5646-7000
Year
1970
Dial Color
Silver
Case Material
Stainless Steel
Movement
Automatic
Caliber
5646A
Country
Japan
Gender
Men's
Jewels
25
Band Material
Leather
Department
Men

Condition

Overall Condition
Good, overall condition
Case
Shows hairline scratches.
Crystal
Shows hairline scratches.
Dial
Has spotting.
Function
Running and keeping time
Complications
Day-Date.

Measurements

Diameter
36mm
Thickness
11mm
Lug Width
18mm
Lug to Lug
42mm

About the Brand

Seiko: A beloved brand among collectors, Seiko has long been known for offering exceptional watches at accessible prices. Founded in 1881, the Japanese brand earned worldwide recognition for its divers, sports chronographs, and industry-leading quartz technology. With a lineup that includes historically significant and technically innovative pieces, Seiko remains one of the most widely collected and respected watch brands across all price points.

📦 Ships from Fort Worth, TX
Learn more about in-store availability.

Shipping & Returns

Free U.S. shipping. Ships from Fort Worth, TX. 7-day returns on online orders. Some exclusions apply.

Shipping & Returns

Free U.S. shipping. Ships from Fort Worth, TX. 7-day returns on online orders. Some exclusions apply.

Authenticity Promise

Watch Works stands behind the authenticity of every watch we sell.

Because our pieces are vintage or pre-owned, light wear should be expected.

Please review each description and photo carefully before purchase.

Authenticity Promise

Watch Works stands behind the authenticity of every watch we sell.

Because our pieces are vintage or pre-owned, light wear should be expected.

Please review each description and photo carefully before purchase.

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