Seiko Cal. 6644 - 187

Seiko 6644-187

The 6644-187 is a sought-after Hand-Winding piece from Seiko's golden era. With its 21mm lug width and 12.6mm profile, it sits comfortably on most wrists. [seikata-wm-a9a994a7bcad]

Also known as: Rally

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
12.6mm
Lug Width
21mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
150m
Dial Color
Navy
Jewels
21j
Frequency
28,800 bph
Power Reserve
60 hours
Year
1968

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