Seiko Cal. 6636 - 495

The Seiko 6636-495 represents an important milestone in Seiko's 1978 lineup. Powered by the 6636 caliber with 30j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-c2f3fba78a75]

Also known as: Shogun, UFO

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1978

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