Seiko Cal. 3831 - 781

The Seiko 3831-781 represents an important milestone in Seiko's 1978 lineup. Powered by the 3831 caliber with 31j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-6ce9fd5b1736]

Also known as: Rally

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

44mm

Case Thickness

9.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

110m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1978

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