Seiko Cal. 6630 - 426

The Seiko 6630-426 represents an important milestone in Seiko's 1974 lineup. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-faac5ec6cc22]

Also known as: Bellmatic

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

37mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1974

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