Seiko Cal. 6389 - 905

This Automatic model from 1975 features a 45mm PVD Black case. With its 20mm lug width and 8.2mm profile, it sits comfortably on most wrists. [seikata-wm-c23a981448aa]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

45mm

Case Thickness

8.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Green

Jewels

29j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1975

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