Seiko Cal. 6663 - 188

The Seiko 6663-188 represents an important milestone in Seiko's 1971 lineup. It features a Silver dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-c40fae70b78e]

Also known as: Navigator

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

9.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

190m

Dial Color

Silver

Jewels

21j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1971

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