Seiko Cal. 3816 - 554

The Seiko 3816-554 represents an important milestone in Seiko's 1971 lineup. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-b2c577f6ddaf]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

14.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

26j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1971

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