Seiko Cal. 3891 - 767

The Seiko 3891-767 represents an important milestone in Seiko's 1977 lineup. Powered by the 3891 caliber with 25j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-ecdd9a774538]

Also known as: Pogue

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

10.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Cream

Jewels

25j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1977

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