Seiko Cal. 6389 - 670

This Hand-Winding model from 1991 features a 39mm Titanium case. With its 18mm lug width and 14.0mm profile, it sits comfortably on most wrists. [seikata-wm-874602c7d4b2]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

39mm

Case Thickness

14.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1991

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