Seiko Cal. 6627 - 653

The Seiko 6627-653 represents an important milestone in Seiko's 1977 lineup. Powered by the 6627 caliber with 31j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-f5eb023b3647]

Also known as: Tuna, Golden Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Champagne

Jewels

31j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1977

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