Seiko Cal. 6366 - 521

The Seiko 6366-521 represents an important milestone in Seiko's 1972 lineup. The Fixed bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-5db704f491a2]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

35mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1972

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