Seiko Cal. 6645 - 416

The Seiko 6645-416 represents an important milestone in Seiko's 1978 lineup. With its 22mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-d6950f46c00b]

Also known as: World Timer, Crown

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Cream

Jewels

19j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1978

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