Seiko Cal. 6644 - 328

Seiko 6644-328

The 6644-328 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6644 caliber with 23j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-c56fbfb7b557]

Also known as: Samurai, Bullhead

Specifications

Movement
Quartz
Case Material
Gold-Plated
Case Width
38mm
Case Thickness
9.8mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
90m
Dial Color
White
Jewels
23j
Frequency
28,800 bph
Power Reserve
57 hours
Year
1987

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