Seiko Cal. 5636 - 487

Released in 1969, the Cal. 5636 with design code 487 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-ad1bd976845b]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Champagne

Jewels

20j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1969

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