Seiko Cal. 3872 - 138

The Seiko 3872-138 represents an important milestone in Seiko's 1984 lineup. Powered by the 3872 caliber with 22j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-544c7b50474a]

Also known as: Bullhead, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Burgundy

Jewels

22j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1984

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