Seiko Cal. 6636 - 246

The Seiko 6636-246 represents an important milestone in Seiko's 1978 lineup. Powered by the 6636 caliber with 30j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-4cafb1ff7c91]

Also known as: UFO

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

30j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1978

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