Seiko Cal. 3897 - 342

The Seiko 3897-342 represents an important milestone in Seiko's 1977 lineup. With its 22mm lug width and 8.8mm profile, it sits comfortably on most wrists. [seikata-wm-09dbad5e5a5a]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1977

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