Seiko Cal. 4550 - 717

The Seiko 4550-717 represents an important milestone in Seiko's 1968 lineup. It features a Silver dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-e97ba2e4e38f]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

37mm

Case Thickness

13.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Silver

Jewels

36j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1968

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