Seiko Cal. 4552 - 442

The Seiko 4552-442 represents an important milestone in Seiko's 1983 lineup. It features a Black dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-cedb17c94609]

Also known as: Helmet, Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Black

Jewels

27j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1983

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