Seiko Cal. 6398 - 531

The Seiko 6398-531 represents an important milestone in Seiko's 1965 lineup. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-4fe6cbee1632]

Also known as: Rally, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

12.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

200m

Dial Color

Green

Jewels

17j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1965

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