Seiko Cal. 3897 - 638

The Seiko 3897-638 represents an important milestone in Seiko's 1969 lineup. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-89a453848b7b]

Also known as: Turtle, Emperor

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

13.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Champagne

Jewels

20j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1969

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