Seiko Cal. 6644 - 473

This Hand-Winding model from 1977 features a 37mm Two-Tone case. With its 20mm lug width and 11.5mm profile, it sits comfortably on most wrists. [seikata-wm-434b98277ac7]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

11.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Green

Jewels

19j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1977

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