Seiko Cal. 5287 - 527

The Seiko 5287-527 represents an important milestone in Seiko's 1965 lineup. The Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-e81a6118b335]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Cream

Jewels

17j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1965

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