Seiko Cal. 3831 - 111

The Seiko 3831-111 represents an important milestone in Seiko's 1988 lineup. Powered by the 3831 caliber with 26j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-1033bedadd9b]

Also known as: Helmet, World Timer

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Green

Jewels

26j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1988

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