Seiko Cal. 4443 - 913

The Seiko 4443-913 represents an important milestone in Seiko's 1981 lineup. Powered by the 4443 caliber with 19j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-798a3fd5aa12]

Also known as: Monster, Helmet

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

19j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1981

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