Seiko Cal. 6398 - 721

The Seiko 6398-721 represents an important milestone in Seiko's 1983 lineup. The Fixed bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-957c2fa572fa]

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

9.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

White

Jewels

28j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1983

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