Seiko Cal. 6663 - 674

The Seiko 6663-674 represents an important milestone in Seiko's 1983 lineup. It features a Green dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-df08eca1a2e9]

Also known as: Turtle, UFO

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

12.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

50m

Dial Color

Green

Jewels

22j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1983

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