Seiko Cal. 3831 - 812

The Seiko 3831-812 represents an important milestone in Seiko's 1971 lineup. It features a Cream dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-0c76354063cf]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

36mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Cream

Jewels

23j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1971

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