Seiko Cal. 6688 - 911

The Seiko 6688-911 represents an important milestone in Seiko's 1977 lineup. It features a Green dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-bbeb1f709b6d]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

15.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Green

Jewels

21j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1977

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