Seiko Cal. 5643 - 836

The 5643-836 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5643 caliber with 22j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-660ec8213e6a]

Also known as: World Timer, Flighty

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

14.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Cream

Jewels

22j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1989

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