Seiko Cal. 5220 - 731

The Seiko 5220-731 represents an important milestone in Seiko's 1988 lineup. It features a Black dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-f508644fbcda]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

11.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

70m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1988

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