Seiko Cal. 6653 - 978

The Seiko 6653-978 represents an important milestone in Seiko's 1978 lineup. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-f4dc60003469]

Also known as: Golden Tuna, Emperor

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Green

Jewels

21j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1978

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