Seiko Cal. 5287 - 634

Released in 1980, the Cal. 5287 with design code 634 was part of Seiko's domestic market collection. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-5fe694cf24c0]

Also known as: Baby Tuna, Arnie

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Champagne

Jewels

29j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1980

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