Seiko Cal. 6671 - 730

The Seiko 6671-730 represents an important milestone in Seiko's 1969 lineup. Powered by the 6671 caliber with 36j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-33d4826d3a83]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

14.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1969

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