Seiko Cal. 5621 - 391

This Spring Drive model from 1979 features a 34mm Two-Tone case. The Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-e5763e42432e]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

35j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1979

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