Seiko Cal. 5687 - 143

Released in 1967, the Cal. 5687 with design code 143 was part of Seiko's domestic market collection. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-5d1bddb1daab]

Also known as: UFO

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

9.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Silver

Jewels

23j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1967

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