Seiko Cal. 6691 - 684

Released in 1966, the Cal. 6691 with design code 684 was part of Seiko's domestic market collection. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-1a0e730ef2de]

Also known as: Pogue, Helmet

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Navy

Jewels

32j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1966

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