Seiko Cal. 4436 - 320

This Solar model from 1965 features a 42mm Titanium case. With its 21mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-6b36b4495294]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Titanium

Case Width

42mm

Case Thickness

8.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

60m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1965

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