Seiko Cal. 4443 - 491

This Hand-Winding model from 1968 features a 36mm Titanium case. With its 22mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-d7543f57e864]

Also known as: Helmet, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

36mm

Case Thickness

8.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

White

Jewels

33j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1968

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