Seiko Cal. 6636 - 650

The Seiko 6636-650 represents an important milestone in Seiko's 1999 lineup. With its 22mm lug width and 13.4mm profile, it sits comfortably on most wrists. [seikata-wm-5731c505d3a6]

Also known as: UFO, Bellmatic

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

13.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Black

Jewels

17j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1999

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