Seiko Cal. 3831 - 212

The Seiko 3831-212 represents an important milestone in Seiko's 1970 lineup. Powered by the 3831 caliber with 27j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-d5d05fab76c0]

Also known as: Golden Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

44mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

27j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1970

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