Seiko Cal. 6690 - 672

The Seiko 6690-672 represents an important milestone in Seiko's 1973 lineup. It features a Navy dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-f10bcec71497]

Also known as: Sumo, Sea Horse

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

46mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Navy

Jewels

22j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1973

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