Seiko Cal. 3888 - 525

The Seiko 3888-525 represents an important milestone in Seiko's 1969 lineup. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-1ccdca6aade1]

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Black

Jewels

20j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1969

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