Seiko Cal. 6631 - 573

This Kinetic model from 1966 features a 40mm Stainless Steel case. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-b4667995925b]

Also known as: Pogue, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1966

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