Seiko Cal. 3881 - 998

The Seiko 3881-998 represents an important milestone in Seiko's 1976 lineup. It features a White dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-a4d8f3000fda]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

White

Jewels

36j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1976

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