Seiko Cal. 6644 - 303

This Solar model from 1975 features a 38mm PVD Black case. Powered by the 6644 caliber with 26j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-05d72e500aa1]

Also known as: Emperor

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

38mm

Case Thickness

8.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1975

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