Seiko Cal. 4436 - 327

This Hand-Winding model from 1965 features a 42mm PVD Black case. With its 22mm lug width and 15.3mm profile, it sits comfortably on most wrists. [seikata-wm-3cab2fb46596]

Also known as: World Timer, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Champagne

Jewels

20j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1965

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