Seiko Cal. 4478 - 550

This Automatic model from 1966 features a 38mm Stainless Steel case. It features a Black dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-1a89784cfb51]

Also known as: Monster, Arnie

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Black

Jewels

24j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1966

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