Seiko Cal. 6616 - 820

This Quartz model from 1967 features a 45mm Stainless Steel case. Powered by the 6616 caliber with 31j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-806281deebb9]

Also known as: Tuna, Navigator

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

30m

Dial Color

Black

Jewels

31j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1967

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