Seiko Cal. 6645 - 907

This Hand-Winding model from 1971 features a 46mm Stainless Steel case. With its 18mm lug width and 12.5mm profile, it sits comfortably on most wrists. [seikata-wm-bb18f97e0679]

Also known as: Rally, World Timer

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

27j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1971

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