Seiko Cal. 5643 - 495

The Seiko 5643-495 represents an important milestone in Seiko's 1979 lineup. Powered by the 5643 caliber with 28j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-d873a428f372]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

38mm

Case Thickness

15.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

White

Jewels

28j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1979

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