Seiko Cal. 3851 - 380

The Seiko 3851-380 represents an important milestone in Seiko's 1971 lineup. Powered by the 3851 caliber with 33j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-b98e9bb55ee1]

Also known as: Monster, Shogun

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

46mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

130m

Dial Color

White

Jewels

33j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1971

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