Seiko Cal. 6689 - 721

This Solar model from 1977 features a 44mm Gold-Plated case. Powered by the 6689 caliber with 30j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-7ad9ba8fd96b]

Also known as: Sea Horse, Golden Tuna

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

30j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1977

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