Seiko Cal. 6691 - 704

The Seiko 6691-704 represents an important milestone in Seiko's 1998 lineup. It features a Navy dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-e154f70e528f]

Also known as: UFO

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

27j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1998

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