Seiko Cal. 5687 - 389

The 5687-389 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5687 caliber with 23j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-98e254370320]

Also known as: Sumo, Arnie

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

14.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

23j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1979

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