Seiko Cal. 6641 - 899

This Automatic model from 1978 features a 38mm PVD Black case. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-028114213e8a]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

38mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Navy

Jewels

31j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1978

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