Seiko Cal. 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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