Seiko Cal. 6690 - 887

This Hand-Winding model from 1977 features a 35mm Two-Tone case. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-bec7ad7eb055]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

11.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1977

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