Seiko Cal. 6644 - 531

This Automatic model from 1969 features a 44mm PVD Black case. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-0bc79fe1276b]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

9.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Black

Jewels

20j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1969

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