Seiko Cal. 6331 - 655

The Seiko 6331-655 represents an important milestone in Seiko's 1982 lineup. It features a Black dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-0506dfbf78a5]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Black

Jewels

25j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1982

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