Seiko Cal. 5656 - 647

The Seiko 5656-647 represents an important milestone in Seiko's 1977 lineup. It features a Burgundy dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-2653c322ed74]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

180m

Dial Color

Burgundy

Jewels

32j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1977

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