Seiko Cal. 4545 - 720

The Seiko 4545-720 represents an important milestone in Seiko's 1969 lineup. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-461d500c5787]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1969

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