Seiko Cal. 6645 - 779

Seiko 6645-779

The 6645-779 is a sought-after Hand-Winding piece from Seiko's golden era. The Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-8261fe6c79d5]

Also known as: Sportsmatic, Emperor

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
34mm
Case Thickness
14.5mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
90m
Dial Color
White
Jewels
22j
Frequency
28,800 bph
Power Reserve
63 hours
Year
1975

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