Seiko Cal. 6389 - 520

The Seiko 6389-520 represents an important milestone in Seiko's 1969 lineup. Powered by the 6389 caliber with 19j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-1bd5059ba64f]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

70m

Dial Color

Green

Jewels

19j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1969

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