Seiko Cal. 5643 - 431

The Seiko 5643-431 represents an important milestone in Seiko's 1974 lineup. Powered by the 5643 caliber with 34j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-aff3b18c39e7]

Also known as: Golden Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

35mm

Case Thickness

13.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Champagne

Jewels

34j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1974

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