Seiko Cal. 6689 - 371

This Hand-Winding model from 1981 features a 40mm Hardlex-Coated Steel case. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-a3d72d30fd60]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1981

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