Seiko Cal. 4416 - 336

This Spring Drive model from 1968 features a 35mm Hardlex-Coated Steel case. With its 20mm lug width and 14.8mm profile, it sits comfortably on most wrists. [seikata-wm-bfeded21bed8]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

14.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

White

Jewels

29j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1968

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