Seiko Cal. 6637 - 826

Released in 1970, the Cal. 6637 with design code 826 was part of Seiko's domestic market collection. It features a Navy dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-351111077101]

Also known as: UFO, Emperor

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

12.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Navy

Jewels

36j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1970

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