Seiko Cal. 6631 - 273

The Seiko 6631-273 represents an important milestone in Seiko's 1983 lineup. It features a Black dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-5e49a62e6621]

Also known as: Navigator, Arnie

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

14.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

190m

Dial Color

Black

Jewels

36j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1983

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