Seiko Cal. 4531 - 431

The Seiko 4531-431 represents an important milestone in Seiko's 1974 lineup. Powered by the 4531 caliber with 34j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-db5d3082b562]

Also known as: Bullhead, Golden Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

42mm

Case Thickness

13.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Black

Jewels

34j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1974

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