Seiko Cal. 6398 - 720

Released in 1967, the Cal. 6398 with design code 720 was part of Seiko's domestic market collection. Powered by the 6398 caliber with 17j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-1f02ec6cb461]

Also known as: UFO, Crown

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1967

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