Seiko Cal. 6690 - 958

The Seiko 6690-958 represents an important milestone in Seiko's 1997 lineup. The Fixed bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-d9b3ff65af5d]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

9.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Silver

Jewels

18j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1997

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