Seiko Cal. 5689 - 301

This Quartz model from 1965 features a 37mm Stainless Steel case. Powered by the 5689 caliber with 21j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-71ae7d168c8c]

Also known as: Tuna, World Timer

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Silver

Jewels

21j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1965

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