Seiko Cal. 6630 - 356

The Seiko 6630-356 represents an important milestone in Seiko's 1972 lineup. It features a Green dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-ed4bc1f2f727]

Also known as: Golden Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Green

Jewels

33j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1972

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