Seiko Cal. 6644 - 777

Released in 1983, the Cal. 6644 with design code 777 was part of Seiko's domestic market collection. With its 18mm lug width and 14.3mm profile, it sits comfortably on most wrists. [seikata-wm-45ac6eea9c71]

Also known as: Bellmatic, Sea Horse

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

38mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Cream

Jewels

35j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1983

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