Seiko Cal. 6645 - 777

Seiko 6645-777

The 6645-777 is a sought-after Kinetic piece from Seiko's golden era. With its 22mm lug width and 8.7mm profile, it sits comfortably on most wrists. [seikata-wm-b5650caa35f7]

Also known as: Rally

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
8.7mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
110m
Dial Color
Silver
Jewels
35j
Frequency
28,800 bph
Power Reserve
56 hours
Year
1978

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