Seiko Cal. 6631 - 396

The Seiko 6631-396 represents an important milestone in Seiko's 1986 lineup. It features a Green dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-0142dcd23e22]

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

39mm

Case Thickness

15.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

60m

Dial Color

Green

Jewels

21j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1986

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