Seiko Cal. 3864 - 420

This Hand-Winding model from 1971 features a 37mm Two-Tone case. With its 20mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-37340055ee0c]

Also known as: Silverwave

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

White

Jewels

33j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1971

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