Seiko Cal. 5643 - 495

Seiko 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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