Seiko Cal. 6664 - 616

The Seiko 6664-616 represents an important milestone in Seiko's 1968 lineup. Powered by the 6664 caliber with 17j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-f6a0c3c40b63]

Also known as: Samurai, Monster

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

9.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

White

Jewels

17j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1968

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