Seiko Cal. 4555 - 991

The Seiko 4555-991 represents an important milestone in Seiko's 1971 lineup. It features a Silver dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-c4a83180d5ba]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

70m

Dial Color

Silver

Jewels

17j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1971

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