Seiko Cal. 6389 - 240

The Seiko 6389-240 represents an important milestone in Seiko's 1965 lineup. Powered by the 6389 caliber with 17j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-ddd848d72367]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

14.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Cream

Jewels

17j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1965

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