Seiko Cal. 6331 - 650

The Seiko 6331-650 represents an important milestone in Seiko's 1967 lineup. It features a Green dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-9455542de836]

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

15.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Green

Jewels

32j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1967

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