Seiko Cal. 4520 - 497

The Seiko 4520-497 represents an important milestone in Seiko's 1977 lineup. It features a Burgundy dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-a95e5118fd22]

Also known as: Turtle, Shogun

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

15.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Burgundy

Jewels

24j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1977

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