Seiko Cal. 6644 - 174

The Seiko 6644-174 represents an important milestone in Seiko's 1972 lineup. Powered by the 6644 caliber with 22j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-ddbb3d3565d1]

Also known as: Silverwave, Emperor

Specifications

Movement

Solar

Case Material

Titanium

Case Width

42mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Green

Jewels

22j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1972

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