Seiko Cal. 6688 - 547

The Seiko 6688-547 represents an important milestone in Seiko's 1975 lineup. It features a Green dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-c9a8f69159b0]

Also known as: UFO, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

12.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

160m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1975

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