Seiko Cal. 5287 - 521

The 5287-521 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-f9db40ba6fc1]

Also known as: Bellmatic, Navigator

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

15.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

60m

Dial Color

Green

Jewels

22j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1974

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