Seiko Cal. 5687 - 521

The 5687-521 is a sought-after Quartz piece from Seiko's golden era. It features a Burgundy dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-8d162dd8ac0b]

Also known as: Sea Horse

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

45mm

Case Thickness

14.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

36j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1981

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