Seiko Cal. 6691 - 354

This Spring Drive model from 1988 features a 42mm Titanium case. With its 19mm lug width and 8.0mm profile, it sits comfortably on most wrists. [seikata-wm-5a75dcd3968e]

Also known as: UFO, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

8.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

28j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1988

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