Seiko Cal. 6643 - 655

Seiko 6643-655

The Seiko 6643-655 represents an important milestone in Seiko's 1979 lineup. The Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-4c00f9b655f7]

Also known as: Tuna, Arnie

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
8.6mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
170m
Dial Color
Burgundy
Jewels
25j
Frequency
28,800 bph
Power Reserve
64 hours
Year
1979

Related Models

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