Seiko Cal. 6610 - 441

This Spring Drive model from 1966 features a 36mm Stainless Steel case. With its 20mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-de0bd35ee827]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Champagne

Jewels

24j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1966

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