Seiko Cal. 6398 - 431

The Seiko 6398-431 represents an important milestone in Seiko's 1966 lineup. Powered by the 6398 caliber with 32j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-f9f3b1fb500e]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

32j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1966

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