Seiko Cal. 5681 - 666

This Spring Drive model from 1970 features a 45mm Gold-Plated case. It features a Champagne dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-e5be30217b29]

Also known as: Turtle, UFO

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

13.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Champagne

Jewels

35j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1970

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