Seiko Cal. 6689 - 721

This Hand-Winding model from 1966 features a 40mm Gold-Plated case. It features a Blue Sunburst dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-6fd74a4bcf0a]

Also known as: Monster, Goldfeather

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1966

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