Seiko Cal. 3851 - 389

Released in 1975, the Cal. 3851 with design code 389 was part of Seiko's domestic market collection. With its 20mm lug width and 10.0mm profile, it sits comfortably on most wrists. [seikata-wm-5d4a0dff4ae7]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Black

Jewels

36j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1975

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