Seiko Cal. 4520 - 717

The Seiko 4520-717 represents an important milestone in Seiko's 1975 lineup. It features a Green dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-452a60f8d583]

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1975

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