Seiko Cal. 6631 - 699

The Seiko 6631-699 represents an important milestone in Seiko's 1986 lineup. It features a White dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-d8ef8ad88a4a]

Also known as: Navigator

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

14.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

White

Jewels

28j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1986

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