Seiko Cal. 6686 - 687

The Seiko 6686-687 represents an important milestone in Seiko's 1974 lineup. It features a White dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-57ebdbee4d3b]

Also known as: Sea Horse, Crown

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

White

Jewels

33j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1974

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