Seiko Cal. 5660 - 645

The Seiko 5660-645 represents an important milestone in Seiko's 1969 lineup. With its 19mm lug width and 10.1mm profile, it sits comfortably on most wrists. [seikata-wm-45030b42cb94]

Also known as: Samurai, Golden Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

46mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

White

Jewels

22j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1969

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