Seiko Cal. 6674 - 663

The Seiko 6674-663 represents an important milestone in Seiko's 1965 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-1c99320a1418]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1965

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