Seiko Cal. 4482 - 553

This Spring Drive model from 1971 features a 36mm PVD Black case. Powered by the 4482 caliber with 31j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-c88fcdafda09]

Also known as: Bullhead, Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Navy

Jewels

31j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1971

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