Seiko Cal. 6690 - 557

The Seiko 6690-557 represents an important milestone in Seiko's 1995 lineup. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-39cb5ccfb4d5]

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

37mm

Case Thickness

12.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Champagne

Jewels

30j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1995

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