Seiko Cal. 5645 - 218

The Seiko 5645-218 represents an important milestone in Seiko's 1976 lineup. With its 22mm lug width and 8.5mm profile, it sits comfortably on most wrists. [seikata-wm-7a3ddcd945b4]

Also known as: UFO, Baby Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Black

Jewels

30j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1976

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