Seiko Cal. 3888 - 140

The Seiko 3888-140 represents an important milestone in Seiko's 1973 lineup. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-df443c0e49a8]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

8.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

White

Jewels

22j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1973

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