Seiko Cal. 6637 - 986

Released in 1993, the Cal. 6637 with design code 986 was part of Seiko's domestic market collection. The Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-995be57baf5b]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

14.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Champagne

Jewels

22j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1993

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