Seiko Cal. 5644 - 777

Seiko 5644-777

The 5644-777 is a sought-after Quartz piece from Seiko's golden era. With its 20mm lug width and 8.6mm profile, it sits comfortably on most wrists. [seikata-wm-42cec94fc4a2]

Also known as: Arnie

Specifications

Movement
Quartz
Case Material
Gold-Plated
Case Width
36mm
Case Thickness
8.6mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
200m
Dial Color
Silver
Jewels
18j
Frequency
21,600 bph
Power Reserve
63 hours
Year
1971

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