Seiko Cal. 6633 - 316

The Seiko 6633-316 represents an important milestone in Seiko's 1991 lineup. With its 21mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-854ac61ee004]

Also known as: World Timer, Flighty

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

15.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Silver

Jewels

31j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1991

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