Seiko Cal. 4436 - 963

This Spring Drive model from 1993 features a 37mm Titanium case. With its 21mm lug width and 13.6mm profile, it sits comfortably on most wrists. [seikata-wm-011993d3dde6]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

13.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Silver

Jewels

33j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1993

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