Seiko Cal. 3872 - 140

Released in 1981, the Cal. 3872 with design code 140 was part of Seiko's domestic market collection. With its 20mm lug width and 11.8mm profile, it sits comfortably on most wrists. [seikata-wm-2b0ede9ced82]

Also known as: Monster, Baby Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

50m

Dial Color

Silver

Jewels

27j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1981

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