Seiko Cal. 3851 - 633

The Seiko 3851-633 represents an important milestone in Seiko's 1979 lineup. The Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-b5cc3713cbf1]

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

8.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

21j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1979

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