Seiko Cal. 6389 - 742

The Seiko 6389-742 represents an important milestone in Seiko's 1997 lineup. Powered by the 6389 caliber with 20j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-b27d2dbb4883]

Also known as: Sumo, Sea Horse

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

15.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

120m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1997

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