Seiko Cal. 4520 - 217

The Seiko 4520-217 represents an important milestone in Seiko's 1978 lineup. It features a Black dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-7a127d28b9b7]

Also known as: Sumo, Flighty

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Black

Jewels

28j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1978

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