Seiko Cal. 5643 - 158

The Seiko 5643-158 represents an important milestone in Seiko's 1965 lineup. Powered by the 5643 caliber with 21j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-b069241cb8f6]

Also known as: Rally, Baby Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

14.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1965

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