Seiko Cal. 3881 - 945

The Seiko 3881-945 represents an important milestone in Seiko's 1967 lineup. Powered by the 3881 caliber with 18j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-a5f2bd4ee913]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Champagne

Jewels

18j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1967

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