Seiko Cal. 5643 - 491

The Seiko 5643-491 represents an important milestone in Seiko's 1969 lineup. With its 22mm lug width and 14.8mm profile, it sits comfortably on most wrists. [seikata-wm-bb672c0a2616]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

14.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

120m

Dial Color

Silver

Jewels

33j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1969

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