Seiko Cal. 6681 - 693

The 6681-693 is a sought-after Quartz piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-67ecfaf21801]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

38mm

Case Thickness

9.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1981

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