Seiko Cal. 3869 - 638

The Seiko 3869-638 represents an important milestone in Seiko's 1972 lineup. Powered by the 3869 caliber with 17j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-419ec4bda2cd]

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

14.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Silver

Jewels

17j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1972

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