Seiko Cal. 5687 - 973

The 5687-973 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5687 caliber with 30j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-a622d469443c]

Also known as: Sea Horse, Arnie

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

43mm

Case Thickness

13.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1988

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