Seiko Cal. 6663 - 218

This Spring Drive model from 1970 features a 37mm PVD Black case. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-1f242010bcc5]

Also known as: Shogun, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

White

Jewels

34j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1970

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