Seiko Cal. 6691 - 454

Released in 1979, the Cal. 6691 with design code 454 was part of Seiko's domestic market collection. Powered by the 6691 caliber with 22j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-c4350ecb6843]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1979

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