Seiko Cal. 5656 - 712

The Seiko 5656-712 represents an important milestone in Seiko's 1970 lineup. With its 22mm lug width and 12.0mm profile, it sits comfortably on most wrists. [seikata-wm-7b9e9fd0ef9d]

Also known as: Golden Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

12.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1970

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