Seiko Cal. 6665 - 637

This Hand-Winding model from 1975 features a 40mm PVD Black case. With its 18mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-9a10cef76f09]

Also known as: Shogun, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1975

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