Seiko Cal. 4521 - 777

The Seiko 4521-777 represents an important milestone in Seiko's 1976 lineup. It features a Silver dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-3248e8872333]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

14.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Silver

Jewels

33j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1976

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