Seiko Cal. 4411 - 635

The Seiko 4411-635 represents an important milestone in Seiko's 1978 lineup. With its 21mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-00fda1d28100]

Also known as: Bullhead, World Timer

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

Navy

Jewels

30j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1978

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