Seiko Cal. 6644 - 381

This Solar model from 1973 features a 46mm PVD Black case. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-35ea685ee3da]

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

46mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Silver

Jewels

23j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1973

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