Seiko Cal. 6643 - 778

Seiko 6643-778

The 6643-778 is a sought-after Automatic piece from Seiko's golden era. With its 18mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-1a1622c8d734]

Also known as: Turtle, Shogun

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
38mm
Case Thickness
10.5mm
Lug Width
18mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
120m
Dial Color
Silver
Jewels
33j
Frequency
36,000 bph
Power Reserve
71 hours
Year
1979

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seikata-wm-1a1622c8d734