Seiko Cal. 3860 - 331

The Seiko 3860-331 represents an important milestone in Seiko's 1972 lineup. With its 18mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-7dc5eedc701c]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

White

Jewels

30j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1972

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