Seiko Cal. 3870 - 413

Released in 1975, the Cal. 3870 with design code 413 was part of Seiko's domestic market collection. With its 19mm lug width and 12.8mm profile, it sits comfortably on most wrists. [seikata-wm-c1df1bd59cf3]

Also known as: Silverwave, Arnie

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

12.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Burgundy

Jewels

22j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1975

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