Seiko Cal. 5689 - 364

The Seiko 5689-364 represents an important milestone in Seiko's 1988 lineup. Powered by the 5689 caliber with 20j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-65fabe5dbfc4]

Also known as: World Timer, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

13.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Silver

Jewels

20j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1988

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