Seiko Cal. 6636 - 929

Released in 1965, the Cal. 6636 with design code 929 was part of Seiko's domestic market collection. It features a Champagne dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-768bfe2da91f]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Champagne

Jewels

23j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1965

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