Seiko Cal. 6321 - 503

This Hand-Winding model from 1986 features a 44mm Titanium case. With its 19mm lug width and 10.8mm profile, it sits comfortably on most wrists. [seikata-wm-18123af0fd0f]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

44mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1986

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